Psathyrella oregonensis A.H. Sm. (1972:157)
Taxonomy & Nomenclature
Conservation Status
Missing (OBIC, 2019:119; NatureServe, 2026) or Rediscovered(?)
Listed as GH (Possibly Extinct) by NatureServe since 2007 (NatureServe, 2026). There are multiple research grade iNaturalist photographic observations of the species, assuming the ID's are correct.
Distribution & Habitat
Oregon, USA
Anatomy & Morphology
Biology & Ecology
Hypodigm
Media
References
Original scientific description:
Smith, A. H. (1972). The North American species of Psathyrella. Memoirs of the New York Botanical Garden 24: 1-633.
Other references:
NatureServe. (2026). Psathyrella oregonensis. NatureServe Network Biodiversity Location Data accessed through NatureServe Explorer [web application]. NatureServe, Arlington, Virginia. Available at: https://explorer.natureserve.org/ [Accessed on 18 August 2026]
OBIC (Oregon Biodiversity Information Center). (2019). Rare, Threatened and Endangered Species of Oregon. Institute for Natural Resources, Portland State University, Portland, Oregon. 133 pp.
Oregon Natural Heritage Program. (2001). Rare, Threatened and Endangered Plants and Animals of Oregon. Oregon Natural Heritage Program, Portland, Oregon. 94 pp. (98 pp. PDF).
Species Fungorum. (2026). Published on the Internet https://www.speciesfungorum.org, The Royal Botanic Gardens, Kew. [Retrieved 18 August 2026]