Orange Pinwheel Mushroom Marasmius siccus (Schweinitz) Fries    
Kingdom Fungi   >   Phylum Basidiomycota   >   Class Agaricomycetes   >   Order Agaricales   >   Family Marasmiaceae   >   Genus Marasmius   

Status:

Found scattered or in groups on decaying leaves or conifer needles (white pine).

Description:

Cap: Shades of orange; rough, deeply grooved surface; bell-shaped with depressed disc (in age); white, thin flesh. Gills: White to pale yellow, distant. Stalk: Yellowish when young, darkens to brown, thin. (J. Solem, pers. comm.)

There are 39 records in the project database.

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Orange Pinwheel Mushroom in Howard Co., Maryland (10/8/2014). (c) Joanne and Robert Solem, some rights reserved (CC BY-NC). Photo by Joanne Solem. (MBP list)

Orange Pinwheel Mushroom in Howard Co., Maryland (10/8/2014). (c) Joanne and Robert Solem, some rights reserved (CC BY-NC). Photo by Joanne Solem. (MBP list)

Orange Pinwheel Mushrooms (group) in Howard Co., Maryland (8/19/2010). Photo by Robert Solem. (MBP list)

Orange Pinwheel Mushroom (fruiting body) in Howard Co., Maryland (8/19/2010). Photo by Richard Orr. (MBP list)

Orange Pinwheel Mushroom (gills) in Howard Co., Maryland (8/9/2013). Photo by Joanne Solem. (MBP list)

Orange Pinwheel Mushroom in Anne Arundel Co., Maryland (8/13/2020). (c) Matthew Beziat, some rights reserved (CC BY-NC). Photo by Matthew Beziat. (MBP list)

Orange Pinwheel Mushroom in Baltimore Co., Maryland (8/6/2020). (c) Thomas Tooke, some rights reserved (CC BY-NC). Photo by tmtooke via iNaturalist. (MBP list)

Orange Pinwheel Mushroom growing in Montgomery Co., Maryland (6/24/2018). Determined by Jo Solem. Photo by Anne Looker. (MBP list)

Orange Pinwheel Mushroom in Frederick Co., Maryland (8/31/2017). (c) Serenella Linares, some rights reserved (CC BY). Photo by Serenella Linares via iNaturalist. (MBP list)

Spores collected from an Orange Pinwheel Mushroom specimen in Howard Co., Maryland (10/8/2014). Spindle-shaped, smooth, hyaline; measured 18.9-20.3 X 3.2-3.6 microns. Photo by Robert Solem. (MBP list)

Orange Pinwheel Mushroom in Anne Arundel Co., Maryland (9/26/2020). (c) jonbhall, some rights reserved (CC BY-NC). Photo by jonbhall via iNaturalist. (MBP list)

Orange Pinwheel Mushroom in Howard Co., Maryland (10/8/2014). (c) Joanne and Robert Solem, some rights reserved (CC BY-NC). Photo by Joanne Solem. (MBP list)


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