| FISA championships |
- 1974:
 (Baldino, Gaynor, Nauman, Harman, Aserlind, Ewing, Feld, Grogan, cox Hartigan)
- 1975:
 (Meyer, Lutz, Braun, Maye, Fritsch, Buhren, Lobing, Kerkhoff, cox Neumeister)
- 1976: (Werner, Zimmer, Büsken, Nentwig, Neubert, Meschede, Huck, Nehmer, cox Sassenbach)
- 1977:
 (Read, Stuart-Bennett, George, Simpole, Cusack, Innes, Topolski, Drury, cox Sweeney)
- 1978: (Simpole, Read, Drury, Downie, Roberts, Zeun, Melvin, French, cox Moynihan)
- 1979:
 (Goicoechea, Arteaga, Uriarte, Expósito, Elizalde, Redondo, Puertas, Climent, cox Olasagasti)
- 1980: (Barratt, Hosking, Downie, Howe, Zeun, Roberts, Read, Simpole, cox Jefferies)
- 1981:
 (Knudsen, Jensen, Mølgaard, Højlund, Hansson, Eriksen, Espersen, Fransson, cox Klug-Andersen)
- 1982:
 (Valentinis, Torta, Pantano, Tontodonati, R. Borsini, L. Borsini, Castiglioni, Salani, cox Di Capua)
- 1983: (Moya, Cañete, Génova, Muniesa, Crespo, Briones, Llorente, Elizalde, cox Rojí)
- 1984: (Mølgaard, Jacobsen, Højlund, Hansson, Christensen, Jensen, Espersen, Kobbernagel, cox Rasmussen)
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| Official world championships |
- 1985: (Losi, Savoia, Torcellan, Lana, Spremberg, Marostica, Re, Ravasi, cox Di Deco)
- 1986: (Losi, Savoia, Torcellan, Lana, Spremberg, Gaddi, Re, Ravasi, cox Di Deco)
- 1987: (Losi, Striani, Torcellan, Lana, Spremberg, Gaddi, Re, Ravasi, cox Zanetti)
- 1988: (Striani, Re, Spremberg, Losi, Ravasi, Barbaranelli, Bellomo, Torcellan, cox Velotti)
- 1989: (Barbaranelli, Romanini, Falossi, Fraquelli, Torcellan, Gaddi, Re, Ravasi, cox Lamberti)
- 1990: (Barbaranelli, Falossi, Gaddi, Ranieri, Ravasi, Re, Romanini, Striani, cox Lamberti)
- 1991: (Barbaranelli, Cantoni, Gaddi, Marigliano, Ranieri, Ravasi, Re, Romanini, cox Iannuzzi)
- 1992: (Andersen, Blitskov, Buck, Hansen, Jensen Kollat, Meyer, Poulsen, Vestergaard, cox Sorensen)
- 1993:
 (Boyes, Cookson, Fontaine, Hassett, Lay, Peaker, Sommerwil, Thompson, cox Newman)
- 1994: (Bates, Cox, Ellis, Hessian, Kay, Lemon, McNiven, Smith, cox Deakin)
- 1995: (Andersen, Bech Jensen, Buck, Glud, Henrichsen, Jensen Kollat, Jensen, Vestergaard, cox Larsen)
- 1996: (Bech, Edeler, Jenny, Locher, Mielke, Töpfer, Vukelic, Maerz, cox Klotz)
- 1997:
 (Balmforth, Berney, Burgess, Isherwood, Mitchell, Richards, Wiseman, Wright, cox Hayman)
- 1998: (Edeler, Ibielski, Laib, Locher, Rosenberger, Stomporowski, Strauch, Vukelic, cox Kaska)
- 1999: (Plifka, Kerber, Cashman, Den Besten, Cotter, Ruckman, Tripician, Kammann, cox Salamini)
- 2000: (Miller, Mack, Cashman, Winkler, Fedyna, Schwartz, Maclaurin, Warner, cox Fien-Helfman)
- 2001:
 (Dupy, Péron, Porchier, Bussière, Touron, Bette, Hocdé, Dorfman, cox Lattaignant)
- 2002: (Scala, Lodigiani, Del Gaudio, Moriconi, Paniccia, Grande, Fraquelli, Pasqualini, cox Di Palma)
- 2003: (Seibt, Raeder, Drews, Hasse, Borchardt, Schmidt, Hobein, Dahlke, cox Kaska)
- 2004: (Solforosi, Margat, Saïtta, Pouge, Bussière, Faucheux, Planque, Tilliet, cox Majerus)
- 2005: (Vlcek, Danesin, Savrie, Goretti, Scala, Moriconi, Del Gaudio, Gabriele, cox Barattolo)
- 2006: (Scala, Tuccinardi, La Padula, Sancassani, Goretti, Savrie, Vlcek, Gabriele, cox Lenzi)
- 2007:
 (van den Broek, Bottema, Blankert, Beemsterboer, Tromp, Greidanus, Snijders, Godschalk, cox Wiersum)
- 2008: (Carcagno, Bolton, Farrell, Altman, Todd, Daly, Paradiso, Muffelman, cox del Guercio)
- 2009: (Scala, Riccardi, La Padula, Goretti, Ceccatelli, Gallo, Vlcek, Mascarenhas, cox Lenzi)
- 2010: (Wisgott, Gerhardt, Lüke, Wichert, J. Kühner, Seibt, Schömann-Finck, M. Kühner, cox Kowert)
- 2011: (Bertrand, Brown, Tunevitsch, Gibson, Foot, Chisholm, Baker, Purcell, cox Webster)
- 2012: (M. Schömann-Finck, J. Schömann-Finck, M. Kühner, Schützeberg, Hochbruck, J. Kühner, Seibt, Wichert, cox Sauer)
- 2013: (Molteni, Amarante, Zaharia, Barbaro, Oppo, Serpico, Schisano, Di Girolamo, cox D'Aniello)
- 2014: (Franzmann, Barr, Neumann, Wallat, Wisgott, Kilthau, Keßler, Temel, cox Böhm)
- 2015: (Schad, Barr, Neumann, Roller, Franzmann, Wallat, Mertens, Temel, cox Heinemann)
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Chungju
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