Horsehair Fungus Marasmius rotula (Scopoli) Fries  

Description:

Cap: White/yellowish; hemispheric with small depression; margin grooved. Gills: White to pale yellow, attached to a collar; distant. Stalk: Light, especially at apex, becoming reddish-brown to blackish in age; may be small bulb at base. Compare to M. capillaris which grows on oak/hardwood leaves (J. Solem, pers. comm.).

Where to find:

Habitat: Groups on dead wood (J. Solem, pers. comm.).

There are 4 records in the project database.

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Horsehair Fungus (fruiting bodies) in Howard Co., Maryland (6/6/2016). Photo by Joanne Solem. (MBP list)

Horsehair Fungus (aging fruiting bodies) in Howard Co., Maryland (12/13/2011). Photo by Richard Orr. (MBP list)

Horsehair Fungus in Montgomery Co., Maryland (10/10/2018). Determined by Jo Solem. Photo by Anne Looker. (MBP list)

Horsehair Fungus (gills and upper stalks) in Howard Co., Maryland (6/6/2016). Photo by Joanne Solem. (MBP list)

Horsehair Fungus spores collected in Howard Co., Maryland (6/6/2016). Teardrop-shaped, smooth, hyaline; measured 7.7-8.1 X 3.5-4.0 microns. Photo by Robert Solem. (MBP list)


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