Paragymnopus sequoiae
Mycol. Progress 18: 731. 2019.
Common Name: none
Synonyms: Micromphale sequoiae Desjardin; Gymnopus sequoiae (Desjardin) R.H. Petersen
For description see Desjardin, Petersen & Hughes, & 'California Mushrooms'.
Scattered to gregarious on redwood (Sequoia sempervirens) leaves and stems; very common, fruiting in fall throughout the range of coast redwood.
Unknown.
Paragymnopus sequoiae can be distinguished by its small, light brown to grayish orange cap, grayish orange adnate gills, pubescent brown stipe inserted on redwood debris, and a strong but latent garlic odor and taste. Mycetinis copelandii, another garlic-odored species, is larger, grows on oak and tanbark oak leaves, and has a hymeniform pileipellis of clavate cells. Gymnopus androsaceus and Marasmius pallidocephalus may grow on redwood debris, but they have glabrous, bristle-like stipes and lack a fetid odor and taste.
Desjardin, Dennis E. (1985). The Marasmioid Fungi of California. Masters Thesis. San Francisco State University: San Francisco, CA. 287 p.
Desjardin, Dennis E. (1985). New Marasmioid Fungi from California. Mycologia 77: 894-902. (Protologue)
Desjardin, Dennis E. (1987). The Agaricales (Gilled Fungi) of California. 7. Tricholomataceae I. Marasmioid Fungi. Mad River Press: Eureka, CA. 100 p.
Desjardin, D.E., Wood, M.G. & Stevens, F.A. (2015). California Mushrooms: The Comprehensive Identification Guide. Timber Press: Portland, OR. 560 p.
Oliveira, J.J.S., Vargas-Isla, R., Cabral, T.S., Rodrigues, D.P. & Ishikawa, N.K. (2019). Progress on the phylogeny of the Omphalotaceae: Gymnopus s. str., Marasmiellus s. str., Paragymnopus gen. nov. and Pusillomyces gen. nov. Mycological Progress 18(5): 713-739.
Petersen, R.H. & Hughes, K.W. (2016). Micromphale sect. Perforantia (Agaricales, Basidiomycetes); Expansion and phylogenetic placement. MycoKeys 18: 1-122. (PDF) (Web)
