Collybiopsis biformis

Collybiopsis biformis
Scientific classification
Domain:	Eukaryota
Kingdom:	Fungi
Division:	Basidiomycota
Class:	Agaricomycetes
Order:	Agaricales
Family:	Omphalotaceae
Genus:	Collybiopsis
Species:	C. biformis
Binomial name
	Collybiopsis biformis; (Peck) R.H. Petersen (2021)
Synonyms
	Marasmius biformis Peck (1903); Collybia biformis (Peck) Singer (1962); Gymnopus biformis (Peck) Halling (1997);

Collybiopsis biformis is a species of agaric fungus in the family Omphalotaceae found in North America. The species was originally described by Charles Horton Peck in 1903 as Marasmius biformis. The specific epithet biformis refers to the two distinct cap shapes, which Peck noted could be either campanulate (bell-shaped) or flattened.^[1] R.H. Petersen transferred the fungus to the genus Collybiopsis in 2021.

References

^ ^a ^b Peck, Charles H. (1903). "Report of the state botanist 1902". Bulletin of the New York State Museum. 67: 1–194 [25].
^ Singer R. (1961). "Diagnoses fungorum novorum Agaricalium II". Sydowia. 15 (1–6): 45–83 (see p. 55).
^ "GSD Species Synonymy: Gymnopus biformis (Peck) Halling". Species Fungorum. CAB International. Retrieved 2015-05-28.

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[Peck_1903-1] Peck, Charles H. (1903). "Report of the state botanist 1902". Bulletin of the New York State Museum. 67: 1–194 [25].

[Singer_1961-2] Singer R. (1961). "Diagnoses fungorum novorum Agaricalium II". Sydowia. 15 (1–6): 45–83 (see p. 55).

[urlFungorum_synonymy:_Gymnopus_biformis-3] "GSD Species Synonymy: Gymnopus biformis (Peck) Halling". Species Fungorum. CAB International. Retrieved 2015-05-28.

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