Cystolepiota potassiovirens | |
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Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Fungi |
Division: | Basidiomycota |
Class: | Agaricomycetes |
Order: | Agaricales |
Family: | Agaricaceae |
Genus: | Cystolepiota |
Species: | C. potassiovirens |
Binomial name | |
Cystolepiota potassiovirens Singer (1989) | |
Cystolepiota potassiovirens | |
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Gills on hymenium | |
Cap is convex | |
Hymenium is free | |
Ecology is saprotrophic | |
Edibility is unknown |
Cystolepiota potassiovirens is a species of mushroom producing fungus in the family Agaricaceae. [1] [2]
It was described in 1989 by the German mycologist Rolf Singer who classified it as Cystolepiota potassiovirens. [3]
Cystolepiota potassiovirens is a very small brownish mushroom with brown flesh. [3]
Cap: 1cm wide and convex with a small umbo. The surface is brown to dark brown with a pale orange umbo covered with furfuraceous (bran like) scales. Gills: Free, dark brown and close to crowded. They have a slight ventricose bulge in the middle. Stem: 1.7cm tall and 0.8-1mm thick and subequal. The surface is dark brown with a pruinose (powdery) coating. Spores: Ellipsoidal without a germ pore, hyaline, non-amyloid but greenish in KOH. 3.3-4 x 2.5-3μm. Basidia: 15-21 x 5 μm. Four spored. Smell: Indistinct. [3]
The specific epithet potassiovirens derives from the Latin potassio meaning potassium and virens meaning green. [4] This is in reference to the green colouration the spores develop in Potassium Hydroxide (KOH).
The specimens studied by Singer were found growing solitary or gregariously on the ground in the tropical forests of Brazil, 30km North of Manaus. [3]
Macrolepiota procera, the parasol mushroom, is a basidiomycete fungus with a large, prominent fruiting body resembling a parasol. It is a fairly common species on well-drained soils. It is found solitary or in groups and fairy rings in pastures and occasionally in woodland. It is widespread in temperate regions of Eurasia and possibly North America. Further research is needed to confirm whether specimens found in North America are the same species.
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