| Coprinopsis nivea | |
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| Species: | C. nivea |
| Binomial name | |
| Coprinopsis nivea | |
| Synonyms | |
Agaricus niveus Pers. (1801) | |
Coprinopsis nivea | |
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 | Gills on hymenium |
 | Cap is campanulate |
 | Hymenium is adnate |
 | Stipe is bare |
 | Spore print is black |
 | Ecology is saprotrophic |
 | Edibility is unknown |
Coprinopsis nivea is a species of mushroom producing fungus in the family Psathyrellaceae. [1] [2] It is commonly known as the snowy inkcap.
It was first described in 1801 by the German mycologist Christiaan Hendrik Persoon who classified it as Agaricus niveus. [3]
In 1838 it was reclassified as Coprinus niveus by the Swedish mycologist Elias Magnus Fries. [4] [5]
In 2001 phylogentic analysis restructured the Coprinus genus and it was reclassified as Coprinopsis nivea by the mycologists Scott Alan Redhead, Rytas J. Vilgalys & Jean-Marc Moncalvo. [6]
Coprinopsis nivea is a small inkcap mushroom which grows in wetland environments.
Cap: 1.5–3 cm. Starts egg shaped expanding to become campanulate (bell shaped). Covered in white powdery fragments of the veil when young. Gills: Start white before turning grey and ultimately black and deliquescing (dissolving into an ink-like black substance). Crowded and adnate or free. Stem: 3–9 cm long and 4-7mm in diameter. White with a very slightly bulbous base which may present with white tufts similar to that of the cap. Spore print: Black. Spores: Flattened ellipsoid and smooth with a germ pore. 15-19 x 8.5-10.5 μm. Taste: Indistinct. Smell: Indistinct. [7] [8]
The specific epithet nivea (originally niveus) is Latin for snowy or snow covered. [9] This is a reference to the powdery white appearance of this mushroom.
Grows in small trooping or tufting groups on old dung, especially that of cows [10] and horses, Summer through late Autumn. Widespread and recorded quite regularly. [7]
Coprinus is a small genus of mushroom-forming fungi consisting of Coprinus comatus—the shaggy ink cap (British) or shaggy mane (American)—and several of its close relatives. Until 2001, Coprinus was a large genus consisting of all agaric species in which the lamellae autodigested to release their spores. The black ink-like liquid this creates gave these species their common name "ink cap" (British) or "inky cap" (American).
Coprinopsis is a genus of mushrooms in the family Psathyrellaceae. Coprinopsis was split out of the genus Coprinus based on molecular data. The species Coprinopsis cinerea is a model organism for mushroom-forming basidiomycota, and its genome has recently been sequenced completely.
Coprinellus is a genus of mushroom-forming fungi in the family Psathyrellaceae. The genus was circumscribed by the Finnish mycologist Petter Adolf Karsten in 1879. Most Coprinellus species were transferred from the once large genus Coprinus. Molecular studies published in 2001 redistributed Coprinus species to Psathyrella, or the segregate genera Coprinopsis and Coprinellus.
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