text:
1946 in film

The year 1946 in film involved some significant events, including the release of the decade's highest-grossing film, The Best Years of Our Lives, which won seven Academy Awards.

Top-grossing films (U.S.)
The top ten 1946 released films by box office gross in North America are as follows:

Events

 * February 14 - Charles Vidor's Gilda starring Rita Hayworth and Glenn Ford shows audiences one of the most famous scenes of the 20th century: Rita Hayworth singing "Put The Blame On Mame".

 * November 21 – William Wyler's The Best Years of Our Lives premieres in New York featuring an ensemble cast including Fredric March, Myrna Loy, Dana Andrews, Teresa Wright, and Harold Russell.

 * December 20 – Frank Capra's It's a Wonderful Life, featuring James Stewart, Donna Reed, Lionel Barrymore, Henry Travers, and Thomas Mitchell opens in New York.

Notable films released in 1946
United States unless stated

A

 * Angel on My Shoulder
 * Anna and the King of Siam, starring Irene Dunne, Rex Harrison and Linda Darnell
 * Aru yo no Tonosama

B

 * Bad Bascomb, starring Wallace Beery, Margaret O'Brien and Marjorie Main
 * The Bandit of Sherwood Forest, starring Cornel Wilde
 * The Beast with Five Fingers, starring Robert Alda and Peter Lorre
 * Beauty and the Beast (La Belle et la Bête), directed by Jean Cocteau, starring Jean Marais and Josette Day
 * The Best Years of Our Lives, directed by William Wyler, starring Fredric March, Myrna Loy, Dana Andrews and Harold Russell – winner of 8 Oscars
 * Beware, directed by Bud Pollard, starring Louis Jordan
 * The Big Sleep, directed by Howard Hawks, starring Humphrey Bogart and Lauren Bacall
 * Black Beauty, starring Mona Freeman and Richard Denning
 * The Blue Dahlia, starring Alan Ladd and Veronica Lake
 * Blue Skies, starring Bing Crosby and Fred Astaire
 * Boom in the Moon, starring Buster Keaton
 * A Boy and His Dog, starring Harry Davenport

C

 * The Captive Heart, the first Prisoner of War film from World War II
 * Canyon Passage, starring Dana Andrews
 * Centennial Summer
 * The Chase
 * Children of Paradise (U.S. release)
 * Cloak and Dagger
 * Cluny Brown, starring Charles Boyer and Jennifer Jones

D

 * The Dark Corner, starring Lucille Ball and Mark Stevens
 * The Dark Mirror, starring Olivia de Havilland
 * Deception
 * Decoy, a film noir starring Jean Gillie
 * Devotion
 * The Diary of a Chambermaid
 * Dragonwyck, starring Gene Tierney
 * Dressed to Kill, a Sherlock Holmes mystery directed by Roy William Neill, starring Basil Rathbone as Holmes, and Nigel Bruce as Watson (released in U.K. as Sherlock Holmes and the Secret Code)
 * Duel in the Sun, starring Jennifer Jones, Gregory Peck, Joseph Cotten and Lillian Gish

G

 * Gallant Journey, directed by William A. Wellman
 * Gilda, starring Rita Hayworth and Glenn Ford
 * Great Expectations, directed by David Lean, starring John Mills, Jean Simmons and Valerie Hobson
 * Green for Danger, starring Alastair Sim and Trevor Howard
 * The Green Years

H

 * The Harvey Girls, directed by George Sidney, starring Judy Garland and John Hodiak
 * Henry V (U.S. release)
 * Humoresque, starring Joan Crawford and John Garfield

I

 * I See a Dark Stranger
 * It's a Wonderful Life, directed by Frank Capra, starring James Stewart, Donna Reed and Lionel Barrymore
 * Ivan the Terrible

J

 * The Jolson Story, a biopic of Al Jolson starring Larry Parks

K

 * The Kid from Brooklyn
 * The Killers, directed by Robert Siodmak, starring Burt Lancaster and Ava Gardner

L

 * Let There Be Light, documentary directed by John Huston
 * Little Giant, starring Bud Abbott and Lou Costello

M

 * Make Mine Music
 * Magnificent Doll, starring Ginger Rogers and David Niven
 * A Matter of Life and Death, written and directed by Powell and Pressburger, starring David Niven
 * Monsieur Beaucaire, starring Bob Hope
 * The Murderers Are Among Us (Die Mörder sind unter uns), starring Hildegard Knef
 * My Darling Clementine, directed by John Ford, starring Henry Fonda and Linda Darnell

N

 * Night and Day
 * A Night in Casablanca with the Marx Brothers
 * No Regrets for Our Youth (Waga seishun ni kuinashi)
 * Nobody Lives Forever
 * Notorious, directed by Alfred Hitchcock, starring Cary Grant and Ingrid Bergman

O

 * The Outlaw (re-release)
 * The Overlanders

P

 * Paisan, directed by Roberto Rossellini (Italy)
 * Patrie, directed by Louis Daquin (France)
 * People Are Funny, starring Jack Haley
 * The Postman Always Rings Twice, starring Lana Turner and John Garfield

R

 * The Razor's Edge, starring Tyrone Power and Gene Tierney
 * Renegade Girl, starring Ann Savage
 * The Return of Monte Cristo, starring Louis Hayward
 * Road to Utopia, starring Bing Crosby, Dorothy Lamour and Bob Hope

S

 * The Seventh Veil (U.S. release)
 * She-Wolf of London. starring June Lockhart
 * Shoeshine (Sciuscià), directed by Vittorio De Sica
 * Shock, directed by Alfred L. Werker, starring Vincent Price and Lynn Bari
 * Sister Kenny, starring Rosalind Russell
 * Somewhere In The Night, starring John Hodiak
 * Song of the South by Walt Disney, combines animation and live action.
 * The Spiral Staircase, starring Dorothy McGuire
 * A Stolen Life, starring Bette Davis
 * The Strange Love of Martha Ivers, starring Barbara Stanwyck
 * The Strange Woman, starring Hedy Lamarr and George Sanders
 * The Stranger, directed by and starring Orson Welles, Loretta Young and Edward G. Robinson

T

 * Terror by Night, a Sherlock Holmes mystery directed by Roy William Neill, starring Basil Rathbone as Holmes, and Nigel Bruce as Watson
 * Theirs Is the Glory
 * Three Strangers
 * Three Wise Fools, starring Margaret O'Brien and Lionel Barrymore
 * The Time of Their Lives, starring Bud Abbott and Lou Costello
 * To Each His Own, starring Olivia de Havilland
 * Tomorrow Is Forever, starring Orson Welles
 * Two Sisters from Boston, starring Kathryn Grayson, June Allyson, Lauritz Melchior, Jimmy Durante and Peter Lawford.

U

 * Utamaro and His Five Women (Utamaro o meguru gonin no onna)

V

 * The Verdict

W

 * Wake Up and Dream
 * Wanted for Murder
 * The Wife of Monte Cristo, directed by Edgar G. Ulmer
 * Without Reservations

Y

 * The Yearling, starring Gregory Peck and Jane Wyman

Serials

 * Daughter of Don Q
 * Chick Carter, Detective
 * The Crimson Ghost
 * Hop Harrigan
 * King of the Forest Rangers, starring Larry Thompson
 * Lost City of the Jungle
 * The Mysterious Mr. M
 * The Phantom Rider, starring Robert Kent and Peggy Stewart
 * The Scarlet Horseman
 * Son of the Guardsman

Short film series

 * Shirley Temple (1932–1946)
 * The Three Stooges (1934–1959)
 * Popular Science (1935–1950)

Animated short film series

 * Mickey Mouse (1928–1952)
 * Looney Tunes (1930–1969)
 * Terrytoons (1930–1964)
 * Merrie Melodies (1931–1969)
 * Popeye (1933–1957)
 * Color Rhapsodies (1934–1949)
 * Donald Duck (1936–1956)
 * Pluto (1937–1951)
 * Andy Panda (1939–1949)
 * Goofy (1939–1953)
 * Bugs Bunny (1940–1962)
 * Tom and Jerry (1940–1958)
 * The Fox and the Crow (1941–1950)
 * Woody Woodpecker (1941–1949)
 * Mighty Mouse (1942–1955)
 * Droopy (1943–1958)
 * Chip and Dale (1943–1956)
 * Screwball Squirrel (1944–1946)
 * Yosemite Sam (1945–1963)
 * George and Junior (1946–1948)

Births

 * January 5 – Diane Keaton, American actress, producer and director
 * January 6 - Cheng Pei-pei, Chinese actress (d. 2024)
 * January 7 – Arnis Līcītis, Latvian actor (d. 2022)
 * January 16 - Kabir Bedi, Indian actor
 * January 19 – Dolly Parton, American country singer and actress
 * January 20 – David Lynch, American director
 * January 26 – Gene Siskel, film critic, Siskel and Ebert (d. 1999)
 * February 2
 * Blake Clark, American stand-up comedian, actor and voice actor
 * J. E. Freeman, American actor (d. 2014)
 * February 4 - Ivano Marescotti, Italian actor (d. 2023)
 * February 5 – Charlotte Rampling, English actress
 * February 7 – Pete Postlethwaite, English actor (d. 2011)
 * February 8 – Alex Diakun, Canadian actor
 * February 13 – Joe Estevez, American actor, director and producer
 * February 20 – Brenda Blethyn, English actress
 * February 21
 * Tyne Daly, American actress
 * Anthony Daniels, English actor, voice actor and mime artist
 * Alan Rickman, English actor (d. 2016)
 * March 1 - Lana Wood, American actress and producer
 * March 6 - Martin Kove, American actor and martial artist
 * March 7
 * Dan Grimaldi, American actor
 * John Heard, American actor (d. 2017)
 * March 9 - Alexandra Bastedo, British actress (d. 2014)
 * March 12
 * Dean Cundey, American cinematographer and filmmaker
 * Liza Minnelli, American singer and actress
 * Frank Welker, American actor, voice actor and former stand-up comedian
 * March 21 – Timothy Dalton, British actor
 * March 27 - Carl Weintraub, American actor
 * March 28 – Dianne Wiest, American actress
 * March 29 – Paul Herman, American actor (d. 2022)
 * April 3 - Nicholas Jones, English character actor
 * April 5
 * Jane Asher, English actress
 * Björn Granath, Swedish actor (d. 2017)
 * April 12 – Ed O'Neill, American actor and comedian
 * April 15
 * Bob DeSimone, American actor
 * Michael Tucci, American actor
 * April 19 – Tim Curry, English actor and singer
 * April 20 – Haruhiko Yamanouchi, Japanese actor
 * April 23 – Blair Brown, American actress
 * April 25
 * Andrzej Seweryn, Polish actor and director
 * Talia Shire, American actress
 * April 29 – Wayne Robson, Canadian actor (d. 2011)
 * May 1
 * Joanna Lumley, British actress
 * John Woo, Hong Kong director, producer and screenwriter
 * May 2 – David Suchet, English actor
 * May 9 – Candice Bergen, American actress
 * May 11 – Ago Roo, Estonian actor
 * May 13 – Tim Pigott-Smith, English actor (d. 2017)
 * May 18 – Andreas Katsulas, American actor (d. 2006)
 * May 19 – André the Giant, French professional wrestler and actor (d. 1993)
 * May 20 – Cher, American singer and actress
 * May 22 – Jack Kehler, American character actor (d. 2022)
 * June 1 – Brian Cox, Scottish actor
 * June 3 – Penelope Wilton, English actress
 * June 5 - John Bach, British-born New Zealand actor
 * June 8 - Alan Scarfe, British-Canadian actor
 * June 12 - Jack Thibeau, American actor
 * June 15
 * Angela Down, English actress
 * Roy Holder, English actor (d. 2021)
 * June 26
 * Ricky Jay, American actor and writer (d. 2018)
 * Leo Rossi, American actor, writer and producer
 * June 28
 * Bruce Davison, American actor and director
 * Gilda Radner, American comedian and actress (d. 1989)
 * July 2 – Ron Silver, American actor (d. 2009)
 * July 6 – Sylvester Stallone, actor and director
 * July 10 – Sue Lyon, actress (d. 2019)
 * July 13 – Cheech Marin, American actor and comedian
 * July 14 – Vincent Pastore, American actor
 * July 16
 * Dave Goelz, American puppeteer and actor
 * Richard LeParmentier, American actor (d. 2013)
 * July 17 – Alun Armstrong, English actor
 * July 18 – Dicken Ashworth, English actor
 * July 20 - Randal Kleiser, American director, producer, screenwriter and actor
 * July 22 – Danny Glover, actor and director
 * July 27 – Rade Šerbedžija, Croatian actor, director and musician
 * August 6 – Peter Simonischek, Austrian actor (d. 2023)
 * August 9 - Alain Dorval, French voice actor of Sylvester Stallone, from 1976 to 2024 (d 2024).
 * August 16 – Lesley Ann Warren, American actress and singer
 * August 19
 * Ti Lung, Hong Kong actor
 * Christopher Malcolm, Scottish actor, director and producer (d. 2014)
 * August 24 - BP Fallon, Irish actor
 * August 26 - Alison Steadman, English actress
 * August 29 – Lindy Davies, Australian actress and director
 * August 30 - Peggy Lipton, American actress, model and singer (d. 2019)
 * September 1 - Susan Backlinie, American actress and stuntwoman (d. 2024)
 * September 5 – Dennis Dugan, American director, actor, writer and comedian
 * September 13 – Frank Marshall, American producer and director
 * September 15
 * Tommy Lee Jones, actor
 * Oliver Stone, director and producer
 * September 18
 * Struan Rodger, British actor
 * Gailard Sartain, American actor
 * September 25 - Drew Snyder, American actor
 * September 28
 * Peter Egan, British actor
 * Jeffrey Jones, American actor
 * October 2 – Dale Soules, American actress
 * October 4 – Susan Sarandon, American actress
 * October 6 - John Hostetter, American actor and visual artist (d. 2016)
 * October 10
 * Charles Dance, English actor
 * Ben Vereen, American actor
 * October 15 – John Getz, American actor
 * October 16 - Suzanne Somers, American actress and singer (d. 2023)
 * October 22 – Richard McGonagle, American actor
 * October 27 – Ivan Reitman, Slovakian-born Canadian director and producer (d. 2022)
 * October 31 – Stephen Rea, Northern Irish actor
 * November 3
 * Michael Champion, American singer, musician and actor (d. 2021)
 * Tom Savini, American prosthetic makeup artist, actor, stunt performer and director
 * November 4 - John Callen, English-born New Zealand actor and director
 * November 6 – Sally Field, actress
 * November 7 – John Aylward, American actor (d. 2022)
 * November 16 - Dan Shor, American actor, director and writer
 * Novemb
 * Sullivan Walker, Trinidadian actor (d. 2012)
 * Samuel E. Wright, American actor and singer (d. 2021)
 * November 21 - Andrew Davis, American director, producer and writer
 * November 22 – Paul A. Partain, American actor (d. 2005)
 * November 26 - Mark L. Lester, American director, screenwriter and producer
 * December 1 - Maggie Steed, English actress and comedian
 * December 8
 * Frank Pesce, American actor (d. 2022)
 * John Rubinstein, American actor, composer and director
 * December 14 – Patty Duke, American actress (d. 2016)
 * December 16 - Charles Dennis, Canadian actor, director and screenwriter
 * December 17
 * Jayne Eastwood, Canadian actress and comedian
 * Eugene Levy, Canadian actor
 * December 18 – Steven Spielberg, American director and producer
 * December 19 - Robert Urich, American actor and producer (d. 2002)
 * December 20 – John Spencer, American actor (d. 2005)
 * December 21 - Josh Mostel, American actor
 * December 24 - Daniel Beretta, retired French voice actor and singer (d. 2024).
 * December 25 – Stuart Wilson, English actor
 * December 31 - Margaret Travolta, American actress
 * unknown – Omar Al-Shammaa, Lebanese actor, voice actor

Deaths

 * January 13 – Enid Stamp Taylor, English actress
 * February 5 – George Arliss, English actor
 * April 1 – Noah Beery Sr., American actor
 * June 23 – William S. Hart, American actor
 * July 10 - Slim Summerville, American actor and director
 * August 8 – Paul Porcasi, Italian actor
 * August 10 – Léon Gaumont, French film pioneer
 * August 12 – Egon Brecher, Austrian actor, director
 * August 13 – H. G. Wells, British science fiction writer
 * August 26 – Jeanie MacPherson, American actress and screenwriter
 * August 28 – Florence Turner, American actress
 * September 21 – Olga Engl, Austrian actress
 * October 8 – John St. Polis, American actor
 * November 2 – Gabriel Gabrio, French actor
 * November 18 – Donald Meek, Scottish-American actor
 * December 12 – Renée Jeanne Falconetti, French actress
 * December 25 – W. C. Fields, American comedian and actor

Film Debuts

 * Patricia Barry – Her Kind of Man
 * Raymond Burr – Without Reservations
 * Hamilton Camp – Bedlam
 * Gianna Maria Canale – The Black Eagle
 * Kirk Douglas – The Strange Love of Martha Ivers
 * William Fawcett – Stars Over Texas
 * John Hoyt – O.S.S.
 * Martha Hyer – The Locket
 * Burl Ives – Smoky
 * Burt Lancaster – The Killers
 * Gina Lollobrigida – The Black Eagle
 * Lois Maxwell – A Matter of Life and Death
 * Slim Pickens – Smoky
 * Liam Redmond – I See a Dark Stranger
 * Yvonne Sanson – The Black Eagle
 * Emil Sitka – One Exciting Week
 * Hal Smith – Stars Over Texas

title: 1946 in film


text:
1945 in film

The year 1945 in film involved some significant events. With 1945 being the last year of World War II, the many films released this year had themes of patriotism, sacrifices, and peace. In the United States, there were more than eighteen thousand movie theatres operating in 1945, a figure that grew by a third from a decade earlier.

Top-grossing films (U.S.)
The top ten 1945 released films by box office gross in North America are as follows:

Events

 * January 26 – The film National Velvet, starring Mickey Rooney, Elizabeth Taylor, Donald Crisp and Anne Revere, is released nationally in the United States. The film is an instant critical and commercial success, propelling 12-year-old Taylor to stardom and earning Revere the Academy Award for Best Supporting Actress.
 * January 30 – Restricted release of Kolberg, an historical epic which is one of the last Nazi Germany propaganda pieces, in war-torn Berlin. Given its cast of 187,000 (including serving military personnel), probably fewer people watched it than appeared in it.
 * April 20 – Release of Son of Lassie, the 2nd Lassie film and the first film ever to be filmed using the Technicolor monopack method, where a single magazine of film is used to record all of the primary colors. Prior to this method, the most popular recording method was 3-Strip Technicolor, which simultaneously used 3 individual film magazines to record the primary colors.
 * August 10 – Animated Donald Duck short Duck Pimples is released.
 * September 27 – Release of Roberto Rossellini's Roma Città aperta marks the beginning of Italian neorealism in film.
 * October 5 – A strike between the set decorators' union and the studios boils over and becomes known as the Hollywood Black Friday.
 * October 31 – Spellbound, a psychological thriller directed by Alfred Hitchcock, premieres in New York City.
 * November 16 – Paramount Pictures releases theatrical short cartoon titled The Friendly Ghost, introducing a ghost named Casper.
 * November 29 – At the Nuremberg trials a documentary on the Nazi concentration camps directed by John Ford is exhibited as evidence.

January–March

 * January 1945
 * 4 January
 * This Man's Navy
 * 8 January
 * Frenchman's Creek
 * 18 January
 * A Song to Remember
 * 26 January
 * National Velvet
 * February 1945
 * 2 February
 * Here Come the Co-eds
 * 15 February
 * The Seventh Veil
 * March 1945
 * 3 March
 * The Picture of Dorian Gray
 * 16 March
 * The House of Fear

April–June

 * April 1945
 * 7 April
 * Brewster's Millions
 * 17 April
 * Rockin' in the Rockies
 * 20 April
 * The Horn Blows at Midnight
 * 29 April
 * Tarzan and the Amazons
 * May 1945
 * 25 May
 * The Clock
 * June 1945
 * 1 June
 * That's the Spirit
 * 23 June
 * Murder, He Says
 * 30 June
 * Conflict

July–September

 * July 1945
 * 13 July
 * The Story of G.I. Joe
 * 19 July
 * Along Came Jones
 * 27 July
 * The Woman in Green
 * August 1945
 * 11 August
 * Christmas in Connecticut
 * 30 August
 * State Fair
 * September 1945
 * 22 September
 * Rhapsody in Blue

October–December

 * October 1945
 * 20 October
 * Mildred Pierce
 * 26 October
 * Love Letters
 * 31 October
 * And Then There Were None
 * Spellbound
 * November 1945
 * 1 November
 * Vacation from Marriage
 * 10 November
 * Confidential Agent
 * December 1945
 * 7 December
 * House of Dracula
 * 8 December
 * The Enchanted Forest
 * 20 December
 * Dick Tracy
 * 25 December
 * A Walk in the Sun
 * 28 December
 * Scarlet Street
 * 31 December
 * They Were Expendable

Notable films released in 1945
United States unless stated

A

 * The Abandoned (Las Abandonadas), starring Dolores del Río and Pedro Armendáriz – (Mexico)
 * Abbott and Costello in Hollywood, starring Bud Abbott and Lou Costello
 * Allotment Wives, starring Kay Francis
 * Along Came Jones, starring Gary Cooper and Loretta Young
 * Amok – (Mexico)
 * Anchors Aweigh, starring Gene Kelly and Frank Sinatra
 * And Then There Were None, starring Barry Fitzgerald, Walter Huston, Louis Hayward, Judith Anderson

B

 * Back to Bataan, directed by Edward Dmytryk, with John Wayne
 * A Bell For Adano, starring Gene Tierney and John Hodiak
 * The Bells of St. Mary's, directed by Leo McCarey, starring Bing Crosby and Ingrid Bergman
 * Blithe Spirit, directed by David Lean, starring Rex Harrison and Constance Cummings, based on the play by Noël Coward – (GB)
 * Blood on the Sun, starring James Cagney
 * The Body Snatcher, directed by Robert Wise, starring Boris Karloff
 * Boule de suif (Angel and Sinner) – (France)
 * Bougainvillea (Bugambilia), starring Pedro Armendariz and Dolores del Río – (Mexico)
 * Brewster's Millions, starring Dennis O'Keefe
 * Brief Encounter, directed by David Lean, starring Celia Johnson and Trevor Howard- (GB)

C

 * Caesar and Cleopatra, directed by Gabriel Pascal, starring Vivien Leigh and Claude Rains – (GB)
 * Captain Kidd, starring Charles Laughton
 * The Cheaters, starring Joseph Schildkraut and Billie Burke
 * The Cherokee Flash, starring Sunset Carson and Linda Stirling
 * Children of Paradise (Les Enfants du Paradis), by Marcel Carné, starring Arletty, released following the liberation of France
 * Christmas in Connecticut, starring Barbara Stanwyck
 * Circus Cavalcade (La cabalgata del circo) – (Argentina)
 * The Clock, starring Judy Garland
 * Confidential Agent, starring Charles Boyer and Lauren Bacall
 * Conflict, starring Humphrey Bogart
 * Counter-Attack, starring Paul Muni and Marguerite Chapman
 * The Corn Is Green, starring Bette Davis and John Dall
 * Cornered, directed by Edward Dmytryk, starring Dick Powell

D

 * Dakota, starring John Wayne
 * Les dames du Bois de Boulogne, directed by Robert Bresson – (France)
 * Dead of Night, Ealing Studios chiller compendium starring Mervyn Johns and Googie Withers – (GB)
 * Death Mills, directed by Billy Wilder
 * Detour, starring Tom Neal and Ann Savage
 * Diamond Horseshoe, starring Betty Grable
 * Dick Tracy, starring Morgan Conway and Mike Mazurki
 * Dillinger, starring Lawrence Tierney
 * The Dolly Sisters, starring Betty Grable

E

 * The Enchanted Cottage, starring Dorothy McGuire and Robert Young
 * The Enchanted Forest, starring Harry Davenport
 * Escape in the Fog, starring Otto Kruger and Nina Foch

F

 * Fallen Angel, directed by Otto Preminger, starring Alice Faye in her last major film role, Dana Andrews and Linda Darnell
 * Flame of Barbary Coast, starring John Wayne

G

 * The Great Flamarion, directed by Anthony Mann, starring Erich von Stroheim
 * Guest Wife, starring Claudette Colbert and Don Ameche
 * Gun Smoke, starring Johnny Mack Brown and Jennifer Holt

H

 * Hangover Square, starring Laird Cregar, Linda Darnell and George Sanders
 * Here Come the Co-Eds, starring Bud Abbott and Lou Costello
 * High Powered, starring Phyllis Brooks and Robert Lowery
 * The Horn Blows at Midnight, starring Jack Benny
 * Hotel Berlin, starring Faye Emerson and Raymond Massey
 * The House I Live In, a short film starring Frank Sinatra, awarded a special Oscar for its message of tolerance
 * House of Dracula, starring Lon Chaney Jr. and John Carradine
 * The House of Fear (1945 film), a Sherlock Holmes mystery directed by Roy William Neill, starring Basil Rathbone as Holmes, and Nigel Bruce as Watson
 * The House on 92nd Street, produced by Louis de Rochemont, starring Lloyd Nolan and Signe Hasso
 * Humayun, starring Ashok Kumar – (India)

I

 * I Know Where I'm Going!, directed by Michael Powell and Emeric Pressburger, starring Wendy Hiller and Roger Livesey – (GB)
 * I Live in Grosvenor Square, starring Anna Neagle, Rex Harrison and Robert Morley – (GB)
 * I'll Be Your Sweetheart, directed by Val Guest, starring Margaret Lockwood (GB)
 * Incendiary Blonde, starring Betty Hutton
 * The Invisible Army (Den usynlige hær) – (Denmark)
 * Isle of the Dead, starring Boris Karloff and Ellen Drew
 * It's in the Bag!, starring Fred Allen, Jack Benny, Don Ameche

J

 * Johnny Angel, starring George Raft and Claire Trevor

K

 * Kiss and Tell, starring Shirley Temple
 * Kitty, directed by Mitchell Leisen, starring Paulette Goddard and Ray Milland
 * Kolberg – (Nazi Germany)

L

 * Lady on a Train, starring Deanna Durbin and Ralph Bellamy
 * The Last Chance (Die letzte Chance) – (Switzerland)
 * Leave Her to Heaven, starring Gene Tierney and Cornel Wilde
 * Life Begins Anew, directed by Mario Mattoli starring Alida Valli, Fosco Giachetti (Italy)
 * The Lost Letter (Propavshaya gramota) – (USSR)
 * The Lost Weekend, directed by Billy Wilder, starring Ray Milland and Jane Wyman
 * Love Letters, starring Jennifer Jones and Joseph Cotten

M

 * Madonna of the Seven Moons, starring Phyllis Calvert and Stewart Granger – (GB)
 * The Man in Half Moon Street, starring Nils Asther
 * A Medal for Benny, starring Dorothy Lamour
 * The Men who Tread on the Tiger's Tail (Tora no o wo fumu otokotachi), directed by Akira Kurosawa – (Japan)
 * Mildred Pierce, directed by Michael Curtiz, starring Joan Crawford, Ann Blyth, Jack Carson, Zachary Scott, Eve Arden
 * Mom and Dad, a hygiene documentary
 * Momotaro, Sacred Sailors (Momotarō: Umi no Shinpei), the first feature-length animated film from Japan
 * My Name is Julia Ross, starring Nina Foch

N

 * The Naughty Nineties, starring Bud Abbott and Lou Costello

O

 * Objective, Burma!, starring Errol Flynn
 * Our Vines Have Tender Grapes, starring Edward G. Robinson and Margaret O'Brien

P

 * Pardon My Past, starring Fred MacMurray and Marguerite Chapman
 * Perfect Strangers, starring Robert Donat and Deborah Kerr – (GB)
 * The Picture of Dorian Gray, starring George Sanders and Hurd Hatfield
 * Pink String and Sealing Wax, starring Googie Withers and Mervyn Johns – (GB)
 * La porta del cielo (The Gate of Heaven), directed by Vittorio De Sica – (Italy)
 * Pride of the Marines, starring John Garfield
 * Pursuit to Algiers, a Sherlock Holmes mystery directed by Roy William Neill, starring Basil Rathbone as Holmes, and Nigel Bruce as Watson

R

 * The Rake's Progress, starring Rex Harrison – (GB)
 * The Red Meadows (De røde enge) – (Denmark)
 * Rhapsody in Blue, a biopic of George Gershwin starring Robert Alda
 * Rockin' in the Rockies, starring the Three Stooges
 * Roll Call in Heaven (Cuando en el cielo pasen lista) – (Argentina)
 * Rome, Open City (Roma Città aperta), directed by Roberto Rossellini, starring Anna Magnani and Aldo Fabrizi – (Italy)
 * A Royal Scandal, starring Tallulah Bankhead
 * Rustlers' Hideout, starring Buster Crabbe and Al St. John

S

 * Salome Where She Danced, starring Yvonne De Carlo
 * San Antonio, starring Errol Flynn and Alexis Smith
 * Saratoga Trunk, starring Gary Cooper and Ingrid Bergman
 * Scarlet Street, directed by Fritz Lang, starring Edward G. Robinson and Joan Bennett
 * La selva de fuego (The Forest Fire), starring Dolores del Río and Arturo de Córdova – (Mexico)
 * The Seventh Veil, starring James Mason and Ann Todd – (GB)
 * Son of Lassie, starring Peter Lawford
 * A Song to Remember, a biopic of Frédéric Chopin starring Cornel Wilde
 * The Southerner, starring Zachary Scott
 * The Spanish Main, starring Maureen O'Hara and Paul Henreid
 * Spellbound, directed by Alfred Hitchcock, starring Ingrid Bergman and Gregory Peck
 * State Fair, starring Dana Andrews and Jeanne Crain
 * The Stork Club, starring Betty Hutton
 * The Story of G.I. Joe, directed by William Wellman, starring Burgess Meredith and Robert Mitchum
 * The Strange Affair of Uncle Harry, starring George Sanders

T

 * That's the Spirit, starring Jack Oakie
 * They Were Expendable, directed by John Ford, starring Robert Montgomery and John Wayne
 * The Thin Man Goes Home, starring William Powell and Myrna Loy
 * This Man's Navy, starring Wallace Beery
 * The Three Caballeros, a Walt Disney animated film starring Donald Duck and Dora Luz
 * Thrill of a Romance, directed by Richard Thorpe, starring Esther Williams and Van Johnson
 * Thunderhead, Son of Flicka, starring Roddy McDowall
 * Tonight and Every Night, starring Rita Hayworth
 * A Tree Grows In Brooklyn, directed by Elia Kazan, starring Dorothy McGuire
 * Twice Blessed, starring Lee and Lyn Wilde
 * Two O'Clock Courage, starring Ann Rutherford and Tom Conway

U

 * The Unseen, starring Joel McCrea and Gail Russell

V

 * The Valley of Decision, starring Greer Garson and Gregory Peck
 * La vida en un hilo (Life on a Wire) – (Spain)

W

 * A Walk in the Sun, starring Dana Andrews
 * War Comes to America, directed by Frank Capra and Anatole Litvak
 * Waterloo Road, starring John Mills and Stewart Granger – (GB)
 * The Way to the Stars, starring John Mills and Michael Redgrave, written by Terence Rattigan – (GB)
 * The Wicked Lady, starring Margaret Lockwood and James Mason – (GB)
 * Without Love, starring Spencer Tracy, Katharine Hepburn, Lucille Ball
 * The Woman in Green, a Sherlock Holmes mystery directed by Roy William Neill, starring Basil Rathbone as Holmes, and Nigel Bruce as Watson, co-starring Hillary Brook and Henry Daniell
 * Wonder Man, starring Danny Kaye and Virginia Mayo

Y

 * Yolanda and the Thief, starring Fred Astaire and Lucille Bremer

Z

 * Ziegfeld Follies, with an MGM all-star cast

Serials

 * Brenda Starr, Reporter, starring Joan Woodbury
 * Federal Operator 99, starring Marten Lamont
 * Jungle Queen, starring Edward Norris and Eddie Quillan
 * Jungle Raiders
 * Manhunt on Mystery Island, starring Richard Bailey and Linda Stirling
 * The Master Key, starring Dennis Moore
 * The Monster and the Ape, starring Robert Lowery
 * The Purple Monster Strikes, starring Dennis Moore and Linda Stirling
 * The Royal Mounted Rides Again
 * Secret Agent X-9, starring Lloyd Bridges
 * Who's Guilty?

Short film series

 * Mickey Mouse (1928–1953)
 * Looney Tunes (1930–1969)
 * Terrytoons (1930–1964)
 * Merrie Melodies (1931–1969)
 * Scrappy (1931–1941)
 * Popeye (1933–1957)
 * Color Rhapsodies (1934–1949)
 * Donald Duck (1937–1956)
 * Goofy (1939–1955)
 * Andy Panda (1939–1949)
 * Tom and Jerry (1940–1958)
 * Bugs Bunny (1940–1962)
 * Woody Woodpecker (1941–1949)
 * Swing Symphonies (1941-1945)
 * The Fox and the Crow (1941–1950)
 * Red Hot Riding Hood (1943–1949)
 * Droopy (1943–1958)
 * Screwball Squirrel (1944–1946)
 * Yosemite Sam (1945–1963)

Births

 * January 5 – Roger Spottiswoode, Canadian-British-American director, editor and writer
 * January 9 - John Doman, American actor
 * January 16 – Élisabeth Margoni, French actress
 * January 22
 * Jophery Brown, American pitcher, stuntman and actor (died 2014)
 * Michael Cristofer, American actor and filmmaker
 * January 25 – Leigh Taylor-Young, American actress
 * January 28 – Marthe Keller, Swiss actress
 * January 29 – Tom Selleck, American actor
 * February 3 – Marius Weyers, South African actor
 * February 4 – Tony Haygarth, English actor (died 2017)
 * February 8 - Louis Giambalvo, American actor
 * February 9 – Mia Farrow, American actress
 * February 12 – Maud Adams, Swedish actress
 * February 16 – Jeremy Bulloch, English actor (died 2020)
 * February 17
 * Brenda Fricker, Irish actress
 * Calvin Jung, American actor
 * February 20 – Brion James, American actor (died 1999)
 * February 24 – Barry Bostwick, American actor
 * February 27 - Carl Anderson, American singer and actor (died 2004)
 * February 28 – Bubba Smith, American professional football player and actor (died 2011)
 * March 1 - Dirk Benedict, American actor
 * March 3
 * George Miller, Australian filmmaker
 * Hattie Winston, American actress and voice artist
 * March 8 - Janet Wright, English-born Canadian actress (died 2016)
 * March 13 – Whitney Rydbeck, American actor
 * March 24
 * Curtis Hanson, American director, screenwriter and producer (died 2016)
 * Patrick Malahide, British actor and producer
 * March 28 – Raine Loo, Estonian actress (died 2020)
 * April 2 – Linda Hunt, American actress
 * April 3 – Catherine Spaak, Belgian-Italian actress and singer (died 2022)
 * April 4 - Caroline McWilliams, American actress (died 2010)
 * April 11 - Michael Brandon, American actor
 * May 14 - Francesca Annis, English actress
 * May 18 - Candice Azzara, American character actress
 * May 24 – Priscilla Presley, American actress
 * May 27 - Kip Niven, American actor (died 2019)
 * May 30 - Makram Khoury, Israeli-Arab actor
 * May 31 – Rainer Werner Fassbinder, German director, producer and screenwriter (died 1982)
 * June 2
 * Jon Peters, American producer
 * Joan Pringle, American actress
 * June 3 - Bill Paterson, Scottish actor
 * June 6 – David Dukes, American actor (died 2000)
 * June 11 – Adrienne Barbeau, American actress
 * June 12 – Edwin Neal, American actor
 * July 1 – Debbie Harry, American actress and singer (lead vocalist of Blondie (band))
 * July 3 – Mickey Rooney Jr., American actor (died 2022)
 * July 4 - Bruce French, American actor
 * July 6 - Burt Ward, American actor
 * July 19 - George Dzundza, American actor
 * July 21 - Sergio Calderón, Mexican-born American actor (died 2023)
 * July 23 – Edie McClurg, American actress and voice actress
 * July 26 – Helen Mirren, English actress
 * August 2 – Joanna Cassidy, American actress
 * August 5 – Loni Anderson, American actress
 * August 14
 * Steve Martin, American actor and comedian
 * Wim Wenders, German director, producer and screenwriter
 * August 15
 * Jill Haworth, English-American actress (died 2011)
 * Nigel Terry, English actor (died 2015)
 * August 21 – Patty McCormack, American actress
 * August 23 – Bob Peck, English actor (died 1999)
 * August 24 - Cástulo Guerra, Argentine actor
 * August 28 - Jeannie Linero, American actress
 * September 10 – Dennis Burkley, American actor (died 2013)
 * September 11 - Felton Perry, American actor
 * September 15
 * Roy Brocksmith, American actor (died 2001)
 * Clive Merrison, British actor
 * September 17 – Bruce Spence, New Zealand actor
 * September 22 – Paul Le Mat, American actor
 * October 7 – Michael Wallis, American journalist and voice actor
 * October 17 - Thomas Kopache, American actor
 * October 18 – Huell Howser, American actor, television personality, host, comedian (died 2013)
 * October 19 – John Lithgow, American actor
 * October 20 - George Wyner, American actor
 * October 21 - Everett McGill, American actor
 * October 23 - Hugh Fraser, English actor
 * October 26 – Jaclyn Smith, American actress
 * October 27 – Carrie Snodgress, American actress (died 2004)
 * October 30 – Henry Winkler, American actor
 * October 31 – Brian Doyle-Murray, American actor and comedian
 * November 2 - J. D. Souther, American singer-songwriter and actor
 * November 8 – Angela Scoular, English actress (died 2011)
 * November 10
 * Terence Davies, English screenwriter and director (died 2023)
 * Douglas Gresham, American-British actor and producer
 * November 15 – Bob Gunton, American character actor
 * November 19 - Paula Weinstein, American producer (died 2024)
 * November 21 – Goldie Hawn, American actress
 * November 26 - Daniel Davis, American actor
 * November 27 – James Avery, American actor (died 2013)
 * November 28 – John Hargreaves, Australian actor (died 1996)
 * November 30 – Billy Drago, American actor (died 2019)
 * December 1 – Bette Midler, American actress, comedian and singer
 * December 7 - Clive Russell, Scottish actor
 * December 9 - Michael Nouri, American actor
 * December 13 – Heather North, American actress (died 2017)
 * December 17 – Ernie Hudson, American actor
 * December 21 – Mari Lill, Estonian actress
 * December 24 – Nicholas Meyer, American screenwriter, director and producer
 * December 25
 * Rick Berman, American producer and screenwriter
 * Gary Sandy, American actor
 * December 30 - Lloyd Kaufman, American director, screenwriter, producer and actor
 * December 31
 * Barbara Carrera, Nicaraguan-born American actress
 * Vernon Wells, Australian character actor

Deaths

 * January 14 – Heinrich Schroth, 73, German actor, Dr. Hart's Diary, Melody of a Great City, Die Entlassung, Rembrandt
 * February 23 – Reginald Barker, 58, American director, Civilization, The Bargain, The Coward, The Moonstone
 * March 4 – Lucille La Verne, 72, American actress, Snow White and the Seven Dwarfs, Abraham Lincoln, Orphans of the Storm, A Tale of Two Cities
 * March 4 – Mark Sandrich, 44, American director, The Gay Divorcee, Follow the Fleet, Holiday Inn
 * March 30 – Béla Balogh, 60, Hungarian director
 * April 10 – Gloria Dickson, 27, American actress, Lady of Burlesque, They Won't Forget
 * April 16 – Willie Fung, 49, Chinese-American actor, Come On, Cowboys, The Great Profile
 * April 29 – Malcolm McGregor, 52, American silent screen star, Lady of the Night, The Circle, The Whispering Shadow, The Ladybird
 * May 4 – Anna Dodge, 77, American actress, The Extra Girl, Ride for Your Life
 * July 13 – Alla Nazimova, 66, Ukrainian-born stage and film actress, Blood and Sand, Salomé, Since You Went Away, Madame Peacock
 * July 19 – George Barbier, 80, American actor, No One Man, Evenings for Sale, The Cat's-Paw, The Magnificent Dope
 * August 11 – Stefan Jaracz, 61, Polish actor, Countess Walewska
 * September 1 – Terry, 11, American performing Cairn Terrier, The Wizard of Oz
 * November 11 – Jerome Kern, 60, American composer, Show Boat, Swing Time
 * November 12 – Jaro Fürth, 74, Austrian actor, Diary of a Lost Girl, Joyless Street
 * November 21 – Robert Benchley, 56, American writer and actor, Foreign Correspondent, You'll Never Get Rich, Road to Utopia
 * December 25 – Russell Gleason, 37, American actor, Undercover Agent, The Covered Trailer, News Is Made at Night

Debuts

 * Robert Alda – Rhapsody in Blue
 * Barbara Billingsley – Adventure
 * Kathryn Card – Kiss and Tell
 * Mario Castellani – Romulus and the Sabines
 * Jeff Chandler – Thrill of a Romance
 * Steve Cochran – Booked on Suspicion
 * William Conrad – Pillow to Post
 * June Foray – Bring on the Girls
 * Vincent Gardenia – The House on 92nd Street
 * Vittorio Gassman – Inconto con Laura
 * Maxine Gates – Here Come the Co-Eds
 * Laura Gore – Romulus and the Sabines
 * Coleen Gray – State Fair
 * Jane Greer – Pan-Americana
 * Dwayne Hickman – Captain Eddie
 * John Ireland – A Walk in the Sun
 * David Janssen – It's a Pleasure
 * Silvana Mangano – The Last Judgment
 * E. G. Marshall – The House on 92nd Street
 * Murray Matheson – The Way to the Stars
 * Darren McGavin – A Song to Remember
 * Cameron Mitchell – What Next, Corporal Hargrove?
 * Roger Moore – Perfect Strangers
 * Phillip Pine – The Sailor Takes a Wife
 * John Russell – A Royal Scandal
 * Dean Stockwell – The Valley of Decision
 * Audrey Totter – Main Street After Dark
 * Howard Vernon – Boule de Suif

Star ranking according to Motion Picture Herald exhibitor's poll
* Source: Best Years Going to the Movies, 1945-1946

license: Creative Commons - Attribution Share-Alike - https://creativecommons.org/licenses/by-sa/4.0/

title: 1945 in film


text:
Talk:Lichen

Plural
I always thought the plural was simply "lichen", but shouldn't this be at the singular anyway? Tokerboy — Preceding undated comment added 01:06, 22 January 2003 (UTC)

 * I'm sure there is some linguistic reason why we want the plural to be "lichen" -- it's a common mistake. But the plural is "lichens." Psora 20:08, 23 January 2006 (UTC)

We want the plural to be lichen because lichen is made up of multiple organisms, so it makes sense to call it lichen as a plural, I was recently doing this in a Biology class, and wrongly corrected my teacher (whoops) — Preceding unsigned comment added by JhePittsStop (talk • contribs) 21:55, 11 November 2015 (UTC)

 * We in Italy say lichene and licheni (plural). All the English dictionaries I have consulted have the regular plural form for lichen. Probably because we refer with this term at the single agglomeration of papules. Your reasoning is good but pheraphs the scientific dictionary is divergent from the English dictionary, as in some cases. Ivanmellace (talk) 21:28, 15 November 2023 (UTC)

Picture arrangement
You may have noticed that it seldom works out very well to have lots of pictures evenly registered along one side, as that sort of sets the amount of text that needs to be present in each section. I like all the pictures, but arrangementg with some on the bottom may be a better arrangement. - Marshman 06:01, 2 March 2006 (UTC)

 * Yeah, lots of pictures here.--HisSpaceResearch 09:48, 8 February 2007 (UTC)

 * Either a gallery can be added or some will have to go, but it is a bit much they way it is now. 130.216.191.182 06:07, 19 March 2007 (UTC)

 * I've moved all but a few of the pictures to a photo gallery at the bottom of the article, and placed the remaining ones in pertinent sections. If you can place the gallery in a better position (I'm not sure what the convention is), then please do so. --MithrandirMage 03:12, 20 March 2007 (UTC)

The article has had many modifications of images since the above discussion. I propose a gallery of 4 images, adjacent to the lead, showing clear examples of crustose, fruiticose, foliose, and squamulose growth forms. FloraWilde (talk) 12:36, 20 September 2014 (UTC)

examples?
Would someone be kind enough to provide a short list of common lichens with the taxonomy of their component fungi and algae? Such as reindeer moss and Iceland moss and Wolf moss and so forth? Or links if this is more practical? NaySay 15:42, 5 September 2006 (UTC)

 * There certainly should come some lists of lichens... It is however extremely hard to compile a list of common lichens for a very simple reason: lichens common in Brazil are not common in England, lichens common in Australia are not common in USA etc! And second, such list would become far too long (if not extremely subjective) to put into this general article... So far, please see Category:Lichens for the currently existing articles. Kaarel 19:15, 5 September 2006 (UTC)

 * That needn't be an issue. This is English Wiki, so providing examples which might be accessible to most English-speakers--England, USA, Canada, Australia, New Zealand--would be a good start.   For example, Reindeer moss, which is certainly well known in many locales. And there are lichens which have relatively greater economic importance, such as oakmoss (used in perfumery and found throughout the Northern hemisphere) or reindeer lichen (which is used for food.)NaySay 15:14, 4 October 2007 (UTC)

Mention of Reindeer Moss was added to the lead 1st paragraph. FloraWilde (talk) 12:41, 20 September 2014 (UTC)

Brown algae & yellow-green algae as phycobionts
A paragraph was added saying some lichens have brown algae and yellow-green algal as phycobionts. Which lichens? Where is the reference?Heliocybe 18:46, 30 May 2007 (UTC)

 * Many photobionts have been proposed in a rather speculative manor (e.g. ). However, if you think these claims are unsupported, please feel free to boldly change the article. It could use it. Thanks, Wachholder 06:14, 31 May 2007 (UTC)

Lichen Speed of Growth
I know lichens are very slow growing, but how slow? I'd like to see information on the relative speed of growth as it varies with type and climate. BeeTea 03:07, 19 June 2007 (UTC)

 * According to Mason Hale, Bulletin of the Torrey Botanical Club, Vol. 86, No. 2 (Mar. - Apr., 1959), pp. 126-129 (doi:10.2307/2482993), "the foliose species Parmelia isidiata has grown regularly at the rate of 1.6 mm. per year in radius," while "crustose species increased in radius from .33 to 1.4 mm. per year." This was in Connecticut. Fruticose lichens can grow quite a bit faster. I too would like to see an extensive review of the biogeography of lichen growth rates. See here and here if you want to get started on that. Thanks! Wachholder 09:28, 19 June 2007 (UTC)

Form and Morphology
Aren't "form" and "morphology" redundant? Also I don't think the third paragraph, possible parasitism relates to this topic; it could be consolidated with the mention of the same thing in the first section. --Ericjs 03:13, 4 July 2007 (UTC)

Proposed image of lichen at gull colony
Hi, I was wondering if it could be useful to illustrate this article with this image? -- Slaunger (talk) 13:06, 13 March 2008 (UTC)

 * I would argue against using this image, as it could confuse the viewer as both lichens and bird droppings are pictured (requiring a special comment in the description). The existing images of lichens are fine.  Your image has found a good use in the Greenland article. -- MightyWarrior (talk) 11:33, 14 April 2008 (UTC)

 * OK. Thank you for taking to time to consider it and comment on it. Personally I find it interesting with the Xanthoria and/or Caloplaca specialized to the nutritious environment. But perhaps this would be more relevant in s more specialized contaxt dealing with those lichen families and/or deling with lichen adapted to special environments. -- Slaunger (talk) 11:49, 14 April 2008 (UTC)

Pronounciation
I am not a native speaker of English, so I looked up the word's pronunciation and while this page says it's /laɪ.kən/, my Cambridge Dictionary says it's /lɪtʃ.ən/, also saying that /laɪ.kən/ is American way of saying it? Is this true? 84.50.228.110 (talk) 20:00, 18 April 2008 (UTC)

 * I've heard both pronunciations in the UK; I'm not aware of one or the other predominanting or being considered to be more Britsish or American. My advice: use whichever you feel most comfortable with; you'll be understood. -- Timberframe (talk) 13:18, 15 May 2009 (UTC)

 * Seems like we aught to have some kind of guide here, even if that guide gives two different pronunciation schemes. At Dictionary.com I am seeing  /laɪ.kən/; Wiktionary gives both, specifying that  /lɪtʃ.ən/ is a UK pronunciation.  I am going to try adding the IPAc-en template to give both ways of pronouncing it.  A loose noose (talk) 05:42, 28 July 2018 (UTC)

 * The online OED cites only, though curiously, Oxford Living Dictionaries also cites . OED, as a descriptive and not prescriptive dictionary, seems in error. Incidentally I'm not convinced The Spectator, a political magazine, is a reliable source for this topic. Hairy Dude (talk) 14:27, 10 January 2019 (UTC)

Coxson 1990
Please add the appropriate reference.Heliocybe (talk) 19:08, 15 May 2008 (UTC)

 * I came here to ask the same question. "the work of Coxson (see above) mutualism would appear to best summarise our current knowledge."  If this is the case, we need to have the ref.  If not, this is POV and needs to be removed or balanced.  Also, a couple of additional related points:
 * "There is evidence to suggest that the lichen symbiosis is parasitic rather than mutualistic (Ahmadjian 1993). However, this now needs to be re-examined in light of Coxons (sp?) work." Ahmadjian's cited work from 1993 needs to be re-examined in light of a 1990 publication? I suspect Ahmadjian might disagree with that!
 * The lead section is now WAY too long, see Lead section. It's supposed to be "a short, independent summary of the important aspects of the article's topic," not a detailed academic discussion on the pros and cons of current hypotheses.
 * I know almost nothing about this topic. Can a biologist please fix this problem? Thanks, Walkerma (talk) 18:09, 7 July 2008 (UTC)

Tone, use more plain English
This article seems, in parts, to be written in an academic obscurantist style which is pretty jarring from Wikipedia's usual casual English style. Phrases like "the mutalistic “marriage” slowly became constant" are ridiculously overbaked for example. Other sections use technical buzzwords in places where common words would be clearer. 82.16.16.210 (talk) 15:24, 1 October 2008 (UTC)

 * I tried to move all nonessential technical terms and from the lead, and define all essential technical terms with plain English. The article body still needs similar work, and needs to be organized so that one section flows to the next, yet can be read in isolation, by briefly redefining technical terms as they are reintroduced in each section. FloraWilde (talk) 12:56, 20 September 2014 (UTC)

Is there a way to add keywords somewhere in an article? e.g. I'd like to add "fungus hybrid" and "fungi hybrid" and "algae hybrid" (and alga and algal) as keywords so searches (in here or on search engines) of those terms will find the Lichen article, but I don't see an obvious way to add keywords without adding those phrases to the articles themselves. They're more-properly a symbiosis, but "hybrid" is not incorrect, either. Darr247 (talk) 06:28, 14 July 2018 (UTC)

Article improvement
I'd like to take a stab at improving this important article to WP:GA status. Some major reorganization is needed, as well as much additional material. If anyone has ideas on how to improve the article, please drop a note here at the talk page, or just be bold and edit the main page. I'm not a lichen expert, just a guy with a big stack of books. I also rerated the WikiProject Fungi template from B to C; needs to be better cited for B class. Sasata (talk) 17:27, 31 January 2009 (UTC)

 * Not my subject either but I've made a start by standardising ref formats. -- Timberframe (talk) 13:20, 15 May 2009 (UTC)

Bot-generated content
A computerised algorithm has generated a version of this page using data obtained from AlgaeBase. You may be able to incorporate elements into the current article. Alternatively, it may be appropriate to create a new page at Lichen (alga). Anybot ( contact operator) 17:15, 21 February 2009 (UTC)

Missing content from article
So how did biologists learn that lichens were composite organisms? Or was this fact known since antiquity? (I seriously doubt that, based on what I've read of Pliny's Natural History, but it's possible.) -- llywrch (talk) 17:19, 13 August 2009 (UTC)

 * Several different people began to propose this in the late 1800s, including the famous author Beatrix Potter, but it took a while for their views to become accepted by the scientific community. Millifolium (talk) 23:22, 4 March 2010 (UTC)

Now that Toby Spribille (University of Graz) and team has shown that lichens are composed of three elements ascomycete + basidiomycete + algae, I believe this needs to be added to the the content. J.P. (2016): Basidiomycete yeasts in the cortex of ascomycete macrolichens. Science DOI: 10.1126/science.aaf8287 — Preceding unsigned comment added by Hollisterbulldawg2 (talk • contribs) 14:14, 24 July 2016 (UTC)

Question
I was looking for something about Lichen in the wiki about what they eat/(energy sources) and by products. anyone one have an idea? —Preceding unsigned comment added by 151.193.213.25 (talk) 10:18, 16 December 2009 (UTC)

Taxobox?
I was just wondering why no taxobox is incorparated? I understand that a lichen is really two species, although shouldn't at least the fungus be represented, especially in the light of fungi interchanging algal symbionts.Mike of Wikiworld (talk) 17:19, 5 May 2010 (UTC)

 * The fungal and algal species in the lichen are highly variable coming even from different kingdoms. de Bivort 17:49, 5 May 2010 (UTC)

 * There is a taxobox in the taxonomy and classification section. Perhaps it should be moved to the end of the article?  Millifolium (talk) 21:16, 11 May 2010 (UTC)

Ediacaran Lichens
Debivort's recent (6 June 2011) edit reversion has (perhaps as an oversight) ignored the fact that, assuming that reverted editor "Retallack" is the same "G.J. Retallack" who authored the paper in question, then there is no better qualified person to judge whether or not "... this claim ... has since been retracted by its author" - it is a bit hard to describe an edit as "uncited" when it is editing a citation of a valid publication by the editor themself.

On reading the paper, it seems to present a reasonable case for at least one Ediacaran organism (Dickinsonia) being either a fungus or a lichenised fungus, but does not offer a strong argument to resolve these possibilities. If (the editor) Retallak were to modify his edit to recognise this weaker claim, I would see no problem with it. FredV (talk) 15:48, 6 June 2011 (UTC)

 * Indeed, I did not notice that the username matched the reference. However, the reversion was reasonable. First, it was an uncited change. Can the identical reference cannot cite both retraction by the author and supportive evidence? Second, usernames can be made up willy nilly. Third, the lack of edit summary and single article focus of the user's edits suggests a single purpose account which should be scrutinized. That said - the Alcheringa 2007 article does indeed support the idea of a lichenous Dickensonia. Was this the article that was retracted? If so, what is the new evidence? de Bivort 17:17, 6 June 2011 (UTC)

 * A little detective work reveals the following:
 * 04 Feb 08: User Smith609 first introduces reference to Retallack[2004] and asserts author's retraction in Retallack[2007]
 * 11 Dec 09: User Retallack removes assertion about author's retraction
 * 16 Feb 10: User Sasata merges "evolution" and "paleontology" sections, and reinserts assertion of author's retraction
 * 04 Jun 11: User Retallack (again) removes assertion about author's retraction
 * 06 Jun 11: User Debivort reverts Retallack's edit
 * It seems to me that this whole sequence rests on Smith609's mistaken assertion that Retallack[2007] was a retraction of Retallack[2004]; User Retallack has repeatedly pointed out that this is not the case (and, having read the paper, I agree with him/her). It really doesn't matter whether or not user Retallack is the author of the paper - although I think it most likely that he is. In either case, what other authority could he cite - he is simply correcting an erroneous claim regarding the content of the Retallack[2007] paper. Unless someone produces a convincing response to this argument, I shall restore user Retallack's edit (with a reference to this talk thread in the edit summary). For what it is worth, I assure all readers that I have no personal interest or involvement in this issue. FredV (talk) 09:08, 7 June 2011 (UTC)

 * Nice detective work. I support your actions. de Bivort 17:16, 7 June 2011 (UTC)

Just a humorous aside
So, fungi invented farming long before we did! Huw Powell (talk) 00:39, 12 August 2012 (UTC)

An omission
Was not Beatrix Potter (of Peter Rabbit fame) to first to claim that lichens are composite organisms? Why is she not recognized in this article. Her idea was unjustly rejected by her male peers; why is this injustice perpetuated in Wikipedia? 152.16.27.140 (talk) 21:30, 23 April 2014 (UTC)BWA

 * That is a very interesting point 152.16.27.140, why do you back away from it? There is a historical record to that effect which is of encyclopedic interest, and would be of value to this article if you can find the sources to back the information up. Plantsurfer (talk) 22:32, 23 April 2014 (UTC)

Is Haeckel suitable as lead image?
I'm not convinced the Haeckel image is the right one for the lead. He has emphasized the symmetry of the specimens, and as with many of his marine illustrations, probably greatly exaggerated: I've never seen lichens quite like that. Would it perhaps not be better to put his 'artistic' image down in a History section, and to use the next image (which is already very large) as the sole lead image? Chiswick Chap (talk) 13:14, 22 May 2014 (UTC)

 * Yes, I agree. His images don't represent the natural appearance of lichens. Plantsurfer (talk) 21:42, 22 May 2014 (UTC)

 * Ok, I'll rearrange the images. Chiswick Chap (talk) 08:29, 23 May 2014 (UTC)

Are lichens carbon neutral?
Our article says "The algal or cyanobacterial cells are photosynthetic, and as in plants they reduce atmospheric carbon dioxide into organic carbon sugars to feed both symbionts." Here, "reduce" refers to redox. Presumably the fungal component does the opposite. Does anyone know a source on the overall carbon input/output for any lichen species, or for lichens in general? FloraWilde (talk) 12:38, 14 September 2014 (UTC)

 * A quick look on JSTOR reveals plenty of work of that kind. One might say that given that lichens grow, there must be a carbon balance ... but there are plenty of figures to prove that. For example, Upland Tundra in the Foothills of the Brooks Range, Alaska, U.S.A.: Lichen Long-Term Photosynthetic CO2 Uptake and Net Carbon Gain. Otto L. Lange, Sabine C. Hahn, Angelika Meyer and John D. Tenhunen. Arctic and Alpine Research, Vol. 30, No. 3 (Aug., 1998), pp. 252-261 has figures for (photosynthetic) Carbon uptake and net Carbon gain (after subtracting Carbon lost to respiration). For instance, Peltigera malacea, the fastest growing of the seven lichen species measured, took up about 4.5 mg of Carbon per gram of Carbon in the thallus in 19 days, and had a net Carbon gain of about 2.5 mg/g in the same period. Chiswick Chap (talk) 13:59, 14 September 2014 (UTC)

 * Thanks. One might actually say that given that lichens grow, and that they are not parasitic, there must be a carbon gain (not balance). I did not carefully look at the source you cited, but I assume it was written with a presumption that the lichens studied were not parasitic on some other life-form from which they might have gained carbon, in addition to uptake from the atmosphere. FloraWilde (talk) 13:50, 15 September 2014 (UTC)

Are the expression "lichenized fungus" and "lichen" synonymous?
Is there a RS clear authority as to whether "lichenized fungus" refers to the entire lichen, or just to the fungal component? FloraWilde (talk) 14:50, 14 September 2014 (UTC)

 * I think you've answered your own question with your ref, which like all the others treats the new term lichenized fungus as a synonym for the older term lichen, including its algal components. Chiswick Chap (talk) 15:04, 14 September 2014 (UTC)

 * Thanks. My question arises from what appears to be a usage in some authoritative sources that implies the expressions are not synonymous, and in others that the expressions are synonymous.
 * Page 94 of Brodo, Sharnoff, and Sharnoff's Lichens of North America says (According to Lynn Margulis and Eva Barreno,), “Every recognizable lichen is derived from a different species of lichenized fungus”. If the expressions were synonymous, this sentence would be a tautology (i.e., "Every recognizable lichen is derived from a different species of lichen"). So the expressions must not be synonymous for Brodo, Sharnoff, and Sharnoff.
 * Sometimes the same source implies the expressions are not synonymous on one page, then that they are synonymous on another. For example, the sentence "Lichens (sometimes referred to as lichenized fungi) are classified with the fungi" implies that "lichenized fungi" is synonymous with "lichen". The similar sentences "Lichens are classified with the fungi (sometimes referred to as lichenized fungi)" implies that "lichenized fungi" refers to the fungal component, and the two expressions are not synonymous. The latter "not synonymous" sentence is quoted from the Australian Botanical Garden website page What is a lichen?. Yet at the same website, on the "What is not a lichen page, explicitly says the expressions are synonymous - "a lichen (also called a lichenized fungus)".
 * Brodo, Sharnoff, and Sharnoff is about as authoritative a source as it gets for Wikipedia, and would support adding a sentence to our article - "A lichenized fungus is the fungal component when it is living in association with the photosyhthetic component." But I would rather do an edit that says the opposite, "lichens are sometimes referred to as 'lichenized fungi'". FloraWilde (talk) 14:07, 15 September 2014 (UTC)

 * A lichen is always a lichenised fungus. A lichenised fungus is always part of a lichen. There are no exceptions. However, one term is referring to the whole thing, and the other to only one of the partners.  A fungus that can form mutualistic associations with algae that qualify as lichens may not always do so, but much more commonly vice versa. A fungus may form stable associations with algae in which it is not the external partner, but then it is not recognised as a lichen (Hawksworth 1988).  Dobson  2011 also notes that name of each lichen species can only be applied to the fungus, that each species has a different fungus, but the same algal partner (e.g. Trentepohlia) may occur in many different lichens. Plantsurfer (talk) 15:29, 15 September 2014 (UTC)

 * I expect you are right, but in that case there are plenty of publications that should have been RS but which get it "wrong": in other words, both usages exist, and could easily be about equally common, worse luck. Chiswick Chap (talk) 15:56, 15 September 2014 (UTC)

 * Before today, I thought like Plantsurfer - a lichenized fungus is a fungus that is part of a bigger whole, and no naturally found apart from that whole - "the fungi that form lichens do not occur in nature as independent organisms, a number of the photobionts can be found in free-living forms. It is possible to separately culture the two partners in the laboratory...".What is a lichen? But the three sourced definitions are cited here say,
 * ''"Lichenized fungi (sic fungus) - definitions -
 * ''A. Hawksworth: A stable self-supporting association of a mycobiont and a photobiont in which the mycobiont is the exhabitant.
 * ''B. Ahmadjian: An association between a fungus, usually an ascomycete but in a few cases a basidiomycete or deuteromycete, and one or more photosynthetic partners, generally green algae or cyanobacteria. In all lichens the fungus forms a thallus or lichenized stroma that may contain unique secondary compounds.
 * ''C. McCune: An obligate mutualistic relationship between a fungus and a photosynthetic partner.
 * The first two definitions say a lichenized fungus is an association or relationship, not the fungus in that association or relationship. Chiswick Chap is right about "wrong". FloraWilde (talk) 23:41, 15 September 2014 (UTC)

 * OK, this is a pointless argument about semantics. You might consider a recent paper Buckley HL, Rafat A, Ridden JD, Cruickshank RH, Ridgway HJ, Paterson AM. (2014) Phylogenetic congruence of lichenised fungi and algae is affected by spatial scale and taxonomic diversity. PeerJ 2:e573 http://dx.doi.org/10.7717/peerj.573 in which they also talk about "lichenised algae". It is a no-brainer that since a lichen is an association of a fungus and an alga, any discussion of each partner separately will need to use terms such as "lichenised alga" or "lichenised fungus". Plantsurfer (talk) 08:35, 16 September 2014 (UTC)

I think this isn't so much a matter of semantics as a matter of rhetoric. Synecdoche (referring to the whole by a part) is very common in language generally, so much so that we usually don't notice it, and in this case it certainly doesn't reflect any disagreement over what a lichen or a lichenized fungus actually. Rather the synecdoche reflects a view that the classification of lichens should be based on the fungal partner rather than treating lichens as a distinct taxon in their own right. Thus on one view the whole entity is classified as a lichenized fungus rather than a combined organism, so the important part in this view, the lichenized fungus, is used to stand for the whole. Not surprisingly, a quick search through the issues of the British Lichen Society Bulletin I happen to have doesn't show a single use of "lichenized fungus", since the Society is devoted to lichens as a taxon distinct from fungi (they are lichenologists, not mycologists interested in lichenized fungi). Peter coxhead (talk) 09:07, 16 September 2014 (UTC)

 * This seems at first glance like a pointless, nitpicking discussion, but let me add one nit I have not seen picked. People for years have been applying scientific names to lichens, much as if they were a distinct group comparable to cycads or bryophytes. Question is to what does the scientific name apply? Does it apply to the fungus? To the alga? To the association of the two? One might argue that there should be three names involved here: one for the fungus, one for the alga, and one for the symbiotic pair. But no, the decision was made some time ago the the name that has been applied to the symbiotic lichen is also the name of the fungus. Each lichen has a distinct fungus, but the alga in one lichen is frequently indistinguishable from the alga in another lichen. This enables you to decide which herbarium cabinet to put the specimens in, and where to put the lichen on a phylogenetic tree.Joseph Laferriere (talk) 13:46, 16 September 2014 (UTC)

 * However, the strict cladists don't like this approach (keeping lichens as a separate taxon), and you'll find more and more classifications which put lichens in various places among the fungi. See this for example. That's why I think there's a rhetorical purpose in calling a lichen a lichenized fungus. Peter coxhead (talk) 18:54, 16 September 2014 (UTC)

 * I made this unsourced edit. FloraWilde (talk) 03:14, 17 September 2014 (UTC)

 * Here is an article that discusses the problem of this section, in plain English - [Form and structure - Sticta and 'Dendriscocaulon'. Note the scare quotes around the second genus in the title, but not around the first. (Thanks Plantsurfer, for finding these genus names. See discussion at talk page section immediately following.) [[User:FloraWilde|FloraWilde]] (talk) 13:44, 17 September 2014 (UTC)

What is the fungus that is lichenized by two photobionts at different times? Is there just one species name?
(This section is related to the section above.) I recently read there is a fungus (not named in the article) that is lichenized by two different photobionts (both algae, as I recall), but not at the same time, thereby creating what would be two entirely different lichens, except for the classification scheme of defaulting to the fungus. Does anyone know what the fungus is, and how the two different lichens are classified as being different? — Preceding unsigned comment added by FloraWilde (talk • contribs) 22:41, 16 September 2014 (UTC)

 * There are many examples of lichens with alternative photobionts. Not sure which is the one you have in mind. For example Lobaria photobionts are Trebouxia, Myrmecia or cyanobacteria Nostoc and Scytonema. Nephroma use green alga Coccomyxa or cyanobacterium Nostoc. Psoroma use photobiont Myrmecia, but external cephalopodia contain Nostoc. Plantsurfer (talk) 00:18, 17 September 2014 (UTC)

 * Thanks, Plantsurfer. That was just the answer I was looking for in order to raise my underlying question using sources. The Lobaria article in Flora of Australia volume 58A (2001)) says, "Photobiont a green alga (Myrmecia or Trebouxia) or a cyanobacterium (Nostoc or Scytonema); in those species with a green photobiont, internal and/or external cephalodia containing a cyanobacterial photobiont normally present..." Is there a single lichenized fungal species that is then named as a different lichen species for each association with different photobionts, or are there different species of fungus, all in a single genus, then each different species gets lichenized by different photobionts? FloraWilde (talk) 00:35, 17 September 2014 (UTC)

 * Dobson 2011 (ISBN 9780855463131) says this about Lobaria amplissima: "Large, mature specimens (up to 1 m wide) sometimes have brown-black, coralloid outgrowths (cephalopodia) up to 2cm wide containing a blue-green photobiont." and  "These outgrowths can break off and continue an independent existence and are called Dendriscocaulon umhausense".  Incidentally, Myrmecia points to an ant on WP, not to an alga. This needs fixing.Plantsurfer (talk) 09:29, 17 September 2014 (UTC)

 * @Plantsurfer, Myrmecia (disambiguation) and Myrmecia (algae) stub started. FloraWilde (talk) 12:36, 17 September 2014 (UTC)

 * @Plantsurfer - Thanks, you named the exact species that I recently read about, but could not recall where, or what species. There is a Plain English discussion of the naming problem in this article titled - Sticta and 'Dendriscocaulon'. Note that the title of the article has scare quotes around Dendriscocaulon, but not around Sticta. FloraWilde (talk) 13:40, 17 September 2014 (UTC)

Please help write taxobox for the "genus with scare quotes" - Dendriscocaulon
The "lichenized fungus", Dendriscocaulon, is a genus of several different species by all measures other than the convention of classifying lichens by their fungal component, which is the only thing going. Please contribute to this article that does not neatly fit into the WP:Plant article template, and does not fit a taxobox into it very neatly. FloraWilde (talk) 14:46, 17 September 2014 (UTC)

 * Well, if we follow the modern convention of classifying "lichens" as "lichenized fungi", then it seems to me that Dendriscocaulon should not have a taxobox; Dendriscocaulon is 'really' Sticta. The situation seems analogous to "form taxa" in paleobotany, or the separate names given to fossil gametophytes and sporophytes before their true identity was discovered (e.g. the gametophyte of Rhynia gwynne-vaughanii was called Remyophyton delicatum). Of course this takes a position on classification that I know that at least some lichenologists don't accept, but as we've discussed before, taxoboxes by their nature are not suited to presenting alternative classifications. Anyway, Plantsurfer seems to be something of an expert in this area, so I'm happy to go along with whatever his view is. Peter coxhead (talk) 16:31, 17 September 2014 (UTC)

 * Plantsurfer seems to have expertise in many areas, and applies that expertise to make many good edits. Rerding your scare quotes around 'really', I just commented to Sminthopsis84 at the Dendriscocaulon article talk page that the current 'reality' of lichen classification conventions (which appear to sometimes come from 'above', not within the lichenologist community) is like classifying humans by a bacteria that has been in everyone's intestine so far, then discovering an isolated tribe of people without the bacteria, and calling them a different species... only because of classification conventions. I posted a link to this discussion at the talk page of species problem, which might provide editors who have different perspectives than strict WP:Plant project editors. FloraWilde (talk) 16:48, 17 September 2014 (UTC)

Are all lichens poikilohydric?
Our article says, with RS, "Lichens are capable of surviving extremely low levels of water content (poikilohydric)." This sentence is easy to source with other RS. But is there an actual authority, other than summary descriptions used as RS, that concludes all lichens are poikilohydric? FloraWilde (talk) 13:30, 17 September 2014 (UTC)

Help with plain English characters for
The article starts off "A lichen (, sometimes ..." The characters used in a pronunciation guide can, and should, be intelligible to an elementary school student. Can anyone help fix this by use of more common special characters for pronunciation? FloraWilde (talk) 14:31, 18 September 2014 (UTC)

 * it's not "resolved" because it only gave one of the pronunciations of the word – the one with a hard "k" (which I use myself, but which in my experience isn't the most common among British lay people). The alternative, represented by, uses the soft "ch" with a short "i". Because of the ambiguity of English orthography, this can only be represented by the IPA in my view. See Manual of Style/Pronunciation which explicitly says that IPA should be used. I've restored the original; by all means other guides but don't remove this one. Peter coxhead (talk) 07:58, 25 September 2014 (UTC)

 * I took down the resolved tag. I assumed that general public English language dictionaries existed with pronunciations of common words like "kitchen", although I never looked until just now, and discovered that online dictionaries are very different than those used in American public schools (or at least used to be used). I just tested ", sometimes " out on the staff here at a US Starbucks, and no one could read it. I explained to them that "ə" was a mathematics-speak for "such that", and "ʃ" for an abstraction of "summation", like in calculus and analysis, and they all nodded as if understanding. The "ʃ" also appears in an old book I happen to have on me, and which also appears online here. The lichen article talk page is probably not a good place for me to be "bitchin" about (possibly unavoidable) plain English deficiencies in Manual of Style/Pronunciation (which I have not read). I found two RS for this edit, "In the US it is commonly pronounced like in 'like in', and in UK it rhymes with kitchen", so the staff at my Starbucks could communicate with their British counterparts. But the article lead is already overlong and I intend to prune it back after I finish adding more content, reorganizing, and making the main articles referred to in the section, more than just copies of the sections. FloraWilde (talk) 11:58, 25 September 2014 (UTC)

 * I started a discussion on use of esoteric character at the beginning of an article, citing lichen as an example, at WP:PRON. Hopefully they will not next be issuing guidelines on pronouncing bionomial names, which of course should always be as with a thick California accent. (Meaning Baja California, of course.) FloraWilde (talk) 13:57, 25 September 2014 (UTC)

 * I can read IPA because I taught computational linguistics, but I know how difficult students found it to learn, so I'm not enthusiastic about its use in the lead section. However, the problem is that alternatives are very hard to get right. is not the same as "like in", which is more likely to be pronounced, but rather "liken" as in "I liken X to Y". Peter coxhead (talk) 14:25, 25 September 2014 (UTC)

 * The only real solution would be audio clips that the reader (listener) can click, recorded by professional "pronouncers". I think that will eventually happen. For now, IPA is a small waste of space for almost all readers, including me. That said, there are far worse things in Wikipedia than small wastes of space. ‑‑ Mandruss (talk) 01:45, 26 September 2014 (UTC)

 * I'm sure you're right on both counts, but don't underestimate the number of such clips that would be needed to keep everyone happy, given the considerable variation in pronunciation among speakers of different English dialects, and given the passion that this variation seems to arouse (as an example, consider "herb", "herbaceous", etc., where those who don't pronounce the "h" and those who do regularly edit-war over "an" versus "a"). Peter coxhead (talk) 07:26, 26 September 2014 (UTC)

Construction tag - Plain English rewrite of lead, nonessential technical terms/content moved to relevant sections
I put up a construction tag. I am doing a Plain English rewrite of the lead. Any essential technical term is defined in plain English followed by the technical term in parentheses, and any nonessential technical term has been moved to a section below. I will similarly start each section with plain English definitions, and move from this to technical info and terms per MOS. When I am done with the sections, I will go back to the article history and check each sentence had its content and sources preserved, so if you notice content was accidentally deleted, it will get restored (or you can stick it back in). FloraWilde (talk) 14:56, 19 September 2014 (UTC)

Pseudotrebouxia

 * The current UC Berkeley Museum of Paleontolgy website says, "The algal partner is usually... Trebouxia, Pseudotrebouxia, or Myrmecia". The U of Omaha website has "Pseudotrebouxia was split from Trebouxia in the late 1970’s based on apparent differences in cell division patterns. However, recent studies do not support the recognition of two genera." These sources are inconsistent. Does anyone know why? FloraWilde (talk) 00:37, 22 September 2014 (UTC)

Trentepohlia plus Trebouxia and Asterochloris is over 75% ?

 * The UK Natural History Museum website says "Trentepohlia is the most common algal genus in lichen." Our article says "Trebouxia occurrs in about 40% of all lichens." without a reference, but is supported by an Environmental Microbiology article saying "Trebouxia and Asterochloris occur in at least 35% of all lichens". This implies that Trentepohlia plus Trebouxia and Asterochloris is over 75% of the species. If that were true, then it seems this fact would be popping up in at least one of the many articles I have recently read. Does anyone with expertise know what is up, like a recent reclassification causing numbers to change? FloraWilde (talk) 00:38, 22 September 2014 (UTC)

Toby Spribille's work
In non-technical articles (See here and here) it would appear that Toby Spribille et al have found that lichens are a combination of two fungi with an alga, or a fungus, a yeast and an alga, which runs counter to the accepted structure of a lichen. I see no mention of this in the article. I am no expert on the subject, but if this recent discovery has any validity, I would have thought it at least would rate a mention, as it would require a rewriting of the entire article. Ptilinopus (talk) 20:51, 21 July 2016 (UTC)

 * It will certainly need to be incorporated in the article. The source is an early release paper in Science (here) so as of now only available online in full to subscribers. As per WP:PSTS, we need to be careful in using single primary sources. Peter coxhead (talk) 05:52, 22 July 2016 (UTC)

 * A current reference is http://science.sciencemag.org/content/353/6298/488 — Preceding unsigned comment added by 65.130.4.64 (talk) 01:59, 10 July 2017 (UTC)

 * In the world of Wikipedia references trump reality. — Preceding unsigned comment added by 128.61.69.11 (talk) 10:09, 22 July 2016 (UTC)

 * I agree it is sensible to be cautious. Presumably, others will be soon trying to replicate, or challenge, so additional papers will soon be available.-- S Philbrick (Talk)  15:51, 23 July 2016 (UTC)

 * I've dug around and it appears that Dr Spribille's work is starting to be cited in other papers (3 so far on Google Scholar). I have taken to monitoring this as a pet project. Manning (talk) 05:23, 1 November 2016 (UTC)

 * I came here from popular Spribille and feel a need for the definition of a lichen species, and also something, anything on component fungus and algae, such as how many species are there, 6? 1,000s? ...and some general characteristics if any...are they consequential, noticeable? I almost get the feeling different species ("kinds?") are defined by form.   This seems basic enough, it should be in the lede section.  Corals are often described as colonies, but not lichen?    It's very confusing.  — Preceding unsigned comment added by 2602:306:CFCE:1EE0:85EE:9A37:8644:8E90 (talk) 01:20, 3 November 2019 (UTC)
 * The current mention of the reference falsely represents the findings of Spribille 2016 10.1126/science.aaf8287. The findings indicate that the triple symbiosis is near a world wide norm rather than an occurrence found in a single species.
 * Considering the status as a primary research article I understand hesitation, but the current addition is simply incorrect. Perturbedxuuya (talk) 21:00, 29 February 2024 (UTC)

Sexual reproduction
In the sexual reproduction section of the article, the two paragraphs containing the word "pycnidia" contain material on asexual reproduction, yet the section on asexual reproduction does not mention pycnidia. Before the world is permanently led astray by this, would some energetic, brave soul please sort this out? --75.164.155.194 (talk) 19:34, 25 July 2016 (UTC)

Importance? Quality?
This Talk page exhibits classic problems with Wikipedia. as a relative newcomer to editing, I frequently see these problems. User-duck (talk) 22:47, 30 August 2017 (UTC)
 * 1) Too many templates, as soon as someone wants a new feature, they create a new template. There are five templates that assign Quality and Importance. The qualities currently assigned are: "B-class" and "C-class", there really should be only one quality ranking. Personally, I think Lichen is a solid B. The importance currently assigned are: "not yet rated", "Top", "High" and "level-4" (I assume this is an importance rating). It is easy for me to understand different importance for different projects.
 * 2) Too many cooks. The unilateral removal of "Further Reading" because there is 128 references was not warranted. I agree five books/articles about Irish/British lichens is overkill, but at least one should have been kept. Also, "... a new lichen species from Norway" is too detailed. Also, I probably can unilaterally change the Quality. I assume (hope?) this is monitored.
 * 3) I think I can make some improvements to the Lichen article, mostly copy edits and format, but I will probably step on some toes. A lot of editors don't really appreciate the "Be Bold" mantra.

 * please note that the templates you are talking about are not meant to indicate an assessment of the article's importance and quality to Wikipedia but to the relevant WikiProjects. It's perfectly possible for an article to be of high importance to one WikiProject but not to another; e.g. the national flower of a country may be of high importance to the country WikiProject but of low importance to WikiProject Plants. The same can sometimes apply to quality. If I assess an article for WikiProject Plants, I compare it to the plant article template and the plants assessment criteria. Other WikiProjects may have different requirements. So you should not change quality assessments for a WikiProject unless and until you understand their processes and standards. Peter coxhead (talk) 08:43, 31 August 2017 (UTC)

There is no study of the percentage of terrestrial surface covered in lichen. The 6-8% figure is a fabrication
Other editors have previously queried this issue below. The reason the citations cannot be found is that they are all circular and the original research does not exist. There is now a journal article in Bioscience about how the figure is not supported by any evidence, and that it has been widely repeated without being challenged: https://doi.org/10.1093/biosci/biae048

I am removing the 8% figure as a false factoid unsupported by any science. Tartan Nutter (talk) 08:52, 5 July 2024 (UTC)

 * Thank-you for excising the bogus "factoid" from this article only a day after the scientific publication came out debunking it! Wikipedia works, sometimes. Esculenta (talk) 23:43, 5 July 2024 (UTC)

Citation issues, percentage of terrestrial surface covered in lichen
In this article it cites the claim that 7% of the planets surface is covered in lichen, but the citation just goes to a new york time’s article that doesn’t cite an actual source. The assertion that 7% of the earth is covered in lichen is super common though and I keep finding it in other papers, but they all loop around to each other and I can’t find a primary source. Its kind of driving me crazy because this feels like a very falsifiable claim that should have a clear origination. 73.180.15.156 (talk) 07:10, 15 February 2023 (UTC)

 * A quick search found these, which both say lichens are the dominant life form over some 8% of the earth's surface:
 * Viewpoint by Vernon Ahmadjian (one of the premier lichenologists of the last century) in Bioscience, 1995
 * Article in Current Biology, Duke University
 * — Preceding unsigned comment added by MeegsC (talk • contribs) 13:19, 15 February 2023 (UTC)

No explanation of “composite organism”
The very first sentence of our article says:
 * A lichen is a composite organism…

Is this terminology standard? We don't have an article on composite organism, not even a redirect. I wanted to link it to some explanation but couldn't find anything anywhere.

Should we have an article titled “composite organism”? If this is terminology not explained elsewhere, we should explain it here, and shouldn't use it in the first sentence of the article.

—Mark Dominus (talk) 19:43, 20 December 2023 (UTC)
 * , you have to read the whole sentence. It finishes "that arises from algae or cyanobacteria living among filaments of multiple fungi species in a mutualistic relationship". That tells you right there that the lichen is an alga or cyanobacteria living within fungal filaments. Is that not clear? We at the (relatively) new lichen task force are in the process of completely rewriting the article (which is a bit of a mess at the moment) so it would be good to know what you're struggling with. MeegsC (talk) 22:50, 20 December 2023 (UTC)
 * I see, thanks. I thought that “composite organism” was a term of art with a specific meaning, and that perhaps there were other composite organisms that were not lichens. —Mark Dominus (talk) 01:30, 21 December 2023 (UTC)

 * I think (correct me if I'm wrong, licheners) that lichen is the only organism of its kind, thus why there is not an article about other things that are lichenous, because nothing else is a 3-part organism that we know of. Though technically some animals are really a composite organism since they host beneficial bacteria and fungi and worms and stuff... but I do not think that is called the same thing by scientists Andre🚐 23:28, 20 December 2023 (UTC)

lichen include a third component, a yeast
It has been years since the third member of the lichen symbiosis was discovered. I don't know how to fix this, but maybe someone will. https://www.purdue.edu/newsroom/releases/2016/Q3/yeast-emerges-as-hidden-third-partner-in-lichen-symbiosis.html#:~:text=%2D%20For%20nearly%20150%20years%2C%20lichens,or%20%22skin%22%20%2D%20yeast. 98.97.57.154 (talk) 22:26, 15 January 2024 (UTC)

 * Check out the "Physiology" section of this article, where this species interaction has been mentioned for years. Esculenta (talk) 22:47, 15 January 2024 (UTC)
 * the research is cited, as citation 1, but the text doesn't mention the yeast. Molly White has a YouTube about how to edit Wikipedia. This bothers me, too.maybe I will have time to log on tomorrow to try to fix it. 98.97.60.216 (talk) 05:22, 26 February 2024 (UTC)
 * I used Molly White's video to edit the very beginning of this, but it needs a re-write. It is full of references from before the discovery of the yeast, in 2016, and more recent research has revealed that some lichens include even more parts. I would like to remove the out of date references, but I don't know how, and a search comes up with nothing. Linddaski (talk) 04:14, 31 March 2024 (UTC)

title: Talk:Lichen