1929–1950 1951–1975 1976–2000
Arthur Piantadosi , Les Fresholtz , Dick Alexander , and Jim Webb (1976)
Don MacDougall , Ray West , Bob Minkler , and Derek Ball (1977)
Richard Portman , William McCaughey , Aaron Rochin , and Darin Knight (1978)
Walter Murch , Mark Berger , Richard Beggs , and Nat Boxer (1979)
Bill Varney , Steve Maslow , Gregg Landaker , and Peter Sutton (1980)
Bill Varney , Steve Maslow , Gregg Landaker , and Roy Charman (1981)
Robert Knudson , Robert Glass , Don Digirolamo , and Gene Cantamessa (1982)
Mark Berger , Tom Scott , Randy Thom , and David MacMillan (1983)
Mark Berger , Tom Scott , Todd Boekelheide , and Chris Newman (1984)
Chris Jenkins , Gary Alexander , Larry Stensvold , and Peter Handford (1985)
John Wilkinson , Richard Rogers , Charles Grenzbach , and Simon Kaye (1986)
Bill Rowe and Ivan Sharrock (1987)
Les Fresholtz , Dick Alexander , Vern Poore , and Willie D. Burton (1988)
Donald O. Mitchell , Gregg Rudloff , Elliot Tyson , and Russell Williams II (1989)
Jeffrey Perkins , Bill W. Benton , Gregory H. Watkins , and Russell Williams II (1990)
Tom Johnson , Gary Rydstrom , Gary Summers , and Lee Orloff (1991)
Chris Jenkins , Doug Hemphill , Mark Smith , and Simon Kaye (1992)
Gary Summers , Gary Rydstrom , Shawn Murphy , and Ron Judkins (1993)
Gregg Landaker , Steve Maslow , Bob Beemer , and David MacMillan (1994)
Rick Dior , Steve Pederson , Scott Millan , and David MacMillan (1995)
Walter Murch , Mark Berger , David Parker , and Chris Newman (1996)
Gary Rydstrom , Tom Johnson , Gary Summers , and Mark Ulano (1997)
Gary Rydstrom , Gary Summers , Andy Nelson , and Ron Judkins (1998)
John T. Reitz , Gregg Rudloff , David E. Campbell , and David Lee (1999)
Bob Beemer , Scott Millan , and Ken Weston (2000)
2001–present
Michael Minkler , Chris Munro , and Myron Nettinga (2001)
David Lee , Michael Minkler , and Dominick Tavella (2002)
Christopher Boyes , Michael Hedges , Hammond Peek , and Michael Semanick (2003)
Scott Millan , Greg Orloff , Bob Beemer , and Steve Cantamessa (2004)
Christopher Boyes , Michael Semanick , Michael Hedges , and Hammond Peek (2005)
Bob Beemer , Willie D. Burton , and Michael Minkler (2006)
Kirk Francis , Scott Millan , and David Parker (2007)
Resul Pookutty , Richard Pryke , and Ian Tapp (2008)
Paul N. J. Ottosson and Ray Beckett (2009)
Lora Hirschberg , Gary Rizzo , and Ed Novick (2010)
Tom Fleischman and John Midgley (2011)
Andy Nelson , Mark Paterson , and Simon Hayes (2012)
Skip Lievsay , Niv Adiri , Christopher Benstead , and Chris Munro (2013)
Craig Mann , Ben Wilkins , and Thomas Curley (2014)
Chris Jenkins , Gregg Rudloff , and Ben Osmo (2015)
Kevin O'Connell , Andy Wright , Robert Mackenzie , and Peter Grace (2016)
Mark Weingarten , Gregg Landaker , and Gary Rizzo (2017)
Paul Massey , Tim Cavagin , and John Casali (2018)
Mark Taylor and Stuart Wilson (2019)
Jaime Baksht , Nicolas Becker , Phillip Bladh , Carlos Cortés Navarrete , and Michelle Couttolenc (2020)
Mac Ruth , Mark Mangini , Theo Green , Doug Hemphill , and Ron Bartlett (2021)
Mark Weingarten , James H. Mather , Al Nelson , Chris Burdon , and Mark Taylor (2022)
Tarn Willers and Johnnie Burn (2023)
1990s 2000s
Frank E. Eulner (2000)
Christopher Boyes , Gethin Creagh , Hammond Peek , and Michael Semanick (2001)
Larry Blake (2002)
Doug Hemphill , Richard King , Paul Massey , and Art Rochester (2003)
Elliott Koretz, Michael Minkler , Myron Nettinga , and Lee Orloff (2004)
Paul Brincat , Ben Burtt , Tom Myers , Andy Nelson , Christopher Scarabosio , and Matthew Wood (2005)
Bob Beemer , Willie D. Burton , Michael Minkler , and Richard E. Yawn (2006)
Kirk Francis , Per Hallberg , Karen Baker Landers , Scott Millan , and David Parker (2007)
Lora Hirschberg , Richard King , and Gary Rizzo (2008)
Jeffrey J. Haboush , Michael Keller, Rick Kline , Michael McGee, and Paul N. J. Ottosson (2009)
2010s
Beau Borders , William B. Kaplan , Kevin O'Connell , and Mark Stoeckinger (2010)
Lon Bender , Robert Eber , Victor Ray Ennis , Robert Fernandez, and Dave Paterson (2011)
Simon Hayes , Andy Nelson , Lee Walpole, and John Warhurst (2012)
Niv Adiri , Glenn Freemantle , Skip Lievsay , and Chris Munro (2013)
Thomas Curley , Craig Mann , and Ben Wilkins (2014)
Paul Massey , Mac Ruth , Oliver Tarney , and Mark Taylor (2015)
Peter Grace , Robert Mackenzie , Kevin O'Connell , and Andy Wright (2016)
Alex Gibson , Richard King , Gregg Landaker , Gary Rizzo , and Mark Weingarten (2017)
Erik Aadahl , Michael Barosky, Brandon Proctor , and Ethan Van der Ryn (2018)
David Giammarco , Paul Massey , Steven A. Morrow , and Donald Sylvester (2019)
2020s
Jaime Baksht , Nicolas Becker , Phillip Bladh , Carlos Cortés , Michelle Couttolenc , and Carolina Santana (2020)
Paul Hsu and Tod A. Maitland (2021)
Al Nelson , James Mather , Mark Weingarten , and Bjorn Schroeder (2022)
Richard King , Steven A. Morrow , Tom Ozanich , Jason Ruder , and Dean A. Zupancic (2023)
Well, that’s interesting to know that Psilotum nudum are known as whisk ferns. Psilotum nudum is the commoner species of the two. While the P. flaccidum is a rare species and is found in the tropical islands. Both the species are usually epiphytic in habit and grow upon tree ferns. These species may also be terrestrial and grow in humus or in the crevices of the rocks.
View the detailed Guide of Psilotum nudum: Detailed Study Of Psilotum Nudum (Whisk Fern), Classification, Anatomy, Reproduction