Coprinellus amphithallus

Coprinellus amphithallus is a species of mushroom in the family Psathyrellaceae. It was first described by mycologists Morten Lange and Alexander H. Smith in 1953 before being transferred to the genus Coprinellus in 2001.[1]

Coprinellus amphithallus
Scientific classification
Kingdom:
Fungi
Division:
Basidiomycota
Class:
Agaricomycetes
Order:
Agaricales
Family:
Psathyrellaceae
Genus:
Coprinellus
Species:
C. amphithallus
Binomial name
Coprinellus amphithallus
(M.Lange & A.H.Sm.) Redhead, Vilgalys & Moncalvo (2001)
Synonyms
  • Coprinus amphithallus M.Lange & A.H.Sm. (1953)

Description

The cap is 0.6 to 1.2 cm (0.24 to 0.47 in) tall, and initially sharply conical in shape, but later expands to become bell-shaped (campanulate). The margin of the cap curves upwards as the mushroom ages. The gills are narrow, and spaced close together. They have an adnate attachment to the stipe, and become black in color before dissolving (deliquescing). The stipe is 3 to 5 cm (1.2 to 2.0 in) by 0.08 to 0.1 cm (0.03 to 0.04 in) thick, hyaline to whitish. Initially it is pruinose (with a very fine whitish powder), but later becomes smooth.

The spores are cylindrical and tapering (terete), and tend to vary in size, with dimensions ranging from 11.2–15.6 by 6.2–8.3 µm. The spore-bearing cells, the basidia, are all 2-spored.

Habitat and distribution

This fungus was discovered growing in rich, moist soil. It is known from Denmark and the USA.[2]


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References
  1. Redhead SA, Vilgalys R, Moncalvo JM, Johnson J, Hopple JS Jr (2001). "Coprinus Pers. and the disposition of Coprinus species sensu lato". Taxon. 50 (1): 203–241. doi:10.2307/1224525. JSTOR 1224525.
  2. Lange M, Smith AH, Lange M (1953). "The Coprinus ephemerus group". Mycologia. 45 (5): 747–780. JSTOR 4547754.


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