Mycena overholtsii
| Mycena overholtsii | |
|---|---|
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| Scientific classification | |
| Kingdom: | Fungi |
| Division: | Basidiomycota |
| Class: | Agaricomycetes |
| Order: | Agaricales |
| Family: | Mycenaceae |
| Genus: | Mycena |
| Species: | M. overholtsii |
| Binomial name | |
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Mycena overholtsii A.H.Sm. & Solheim (1953) |
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| Mycena overholtsii | |
|---|---|
| Mycological characteristics | |
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gills on hymenium |
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cap is convex |
 
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hymenium is adnate or adnexed |
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stipe is bare |
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spore print is white |
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ecology is saprotrophic |
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edibility: unknown |
hymenium is adnate
Mycena overholtsii, commonly known as the snowbank fairy helmet or fuzzy foot, is a species of fungus in the family Mycenaceae. The mushrooms produced by the fungus are relatively large for the genus Mycena, with convex grayish caps up to 5 cm (2.0 in) in diameter and stems up to 15 cm (5.9 in) long. The gills on the underside of the cap are whitish to pale gray, and initially closely spaced before becoming well-spaced at maturity after the cap enlarges. The mushrooms are characterized by the dense covering of white "hairs" on the base of the stem. M. overholtsii is an example of a snowbank fungus, growing on well-decayed conifer logs near snowbanks, during or just after snowmelt. Formerly known only from high-elevation areas of western North America, particularly the Rocky Mountain and Cascade regions, it was reported for the first time in Japan in 2010. The edibility of the mushroom is unknown. M. overholtsii can be distinguished from other comparable species by differences in location, or spore size.
The species was first described by mycologists Alexander H. Smith and Wilhelm Solheim in 1953, on the basis of specimens collected in the Medicine Bow Mountains of Albany County, Wyoming. The specific epithet honors the early 20th-century American mycologist Lee Oras Overholts. It is commonly known as the "snowbank fairy helmet", or "fuzzy foot", although it shares the latter name with Tapinella atrotomentosa and Xeromphalina campanella.M. overholtsii has been given the Japanese name yukitsutsumikunugitake.
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