Porpoloma umbrosum

Porpoloma umbrosum, commonly known as the amyloid tricholoma,[2] is a species of fungus in the family Tricholomataceae, and the type species of the genus Porpoloma. It was first described scientifically by mycologists Alexander H. Smith and Maurice B. Walters in 1943 as a species of Tricholoma.[3] Rolf Singer transferred it to Porpoloma (subgenus Pseudotricholoma) in 1962.[4] The mushroom is found in North America, where it fruits singly or in small groups under conifer trees. Although it resembles Tricholoma species, it is distinguished from that genus by its amyloid spores.[2]

Porpoloma umbrosum
Scientific classification
Kingdom:
Fungi
Division:
Basidiomycota
Class:
Agaricomycetes
Order:
Agaricales
Family:
Tricholomataceae
Genus:
Porpoloma
Species:
P. umbrosum
Binomial name
Porpoloma umbrosum
(A.H.Sm. & M.B.Walters) Singer (1962)
Synonyms[1]
  • Tricholoma umbrosum A.H.Sm. & M.B.Walters (1943)
  • Cantharellula umbrosa (A.H.Sm. & M.B.Walters) Singer (1951)
  • Porpoloma elytroides var. umbrosum (A.H.Sm. & M.B.Walters) Bon (1990)

References
  1. "GSD Species Synonymy: Porpoloma umbrosum (A.H. Sm. & M.B. Walters) Singer". Species Fungorum. CAB International. Retrieved 2014-08-08.
  2. Bessette A. (1997). Mushrooms of Northeastern North America. Syracuse University Press. p. 236. ISBN 978-0-8156-0388-7.
  3. Smith AH, Walters MB. (1943). "A new species of Tricholoma". Mycologia. 35 (4): 477–9. doi:10.2307/3754600.
  4. Singer R. (1961). "Diagnoses fungorum novorum Agaricalium II". Sydowia. 15 (1–6): 45–83 (see p. 53).


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