Tapinella panuoides

Tapinella panuoides
Tapinella panuoides
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Fungi
Division: Basidiomycota
Class: Agaricomycetes
Order: Boletales
Family: Tapinellaceae
Genus: Tapinella
Species:
T. panuoides
Binomial name
Tapinella panuoides
(Batsch) E.-J.Gilbert 1931
Les Livres du Mycologue Tome I-IV, Tom. III: Les Bolets: 68 (1931)
Subspecies

Tapinella panuoides var. ionipus (Quélet 1888) C.Hahn 1999

Synonyms

Paxillus panuoides

Tapinella panuoides
View the Mycomorphbox template that generates the following list
Gills on hymenium
Spore print is yellow to brown
Ecology is saprotrophic
Edibility is poisonous

Tapinella panuoides, also known as oyster rollrim,[1] and as fan pax from its former binomial Paxillus panuoides, is a fungus species in the genus Tapinella.

Atromentin is a phenolic compound. The first enzymes in its biosynthesis have been characterised in T. panuoides.[2]

Despite its pleasant taste, the species is poisonous.[3] In North America it can be confused with poisonous western jack o'lanterns, edible chanterelle mushrooms, false chanterelles (Hygrophoropsis aurantiaca), Crepidotus, or Phyllotopsis.[4]

Close-up on the "crimped" gills (Alan Rockefeller photo, Oaxaca, Mexico, 2012)

It grows on wood or in "lignin-rich humus," has little or no stalk where it emerges from the substrate, and the gills appear to be crimped, forked, or crosshatched close to the base.[4]

  1. ^ "Oyster Rollrim (Tapinella panuoides)". iNaturalist. Retrieved 2024-02-25.
  2. ^ Characterization of the atromentin biosynthesis genes and enzymes in the homobasidiomycete Tapinella panuoides. Patrick Schneider, Sarah Bouhired and Dirk Hoffmeister, Fungal Genetics and Biology, Volume 45, Issue 11, November 2008, pages 1487-1496, doi:10.1016/j.fgb.2008.08.009
  3. ^ Miller Jr., Orson K.; Miller, Hope H. (2006). North American Mushrooms: A Field Guide to Edible and Inedible Fungi. Guilford, CN: FalconGuide. p. 288. ISBN 978-0-7627-3109-1.
  4. ^ a b Arora, David (1986). Mushrooms demystified: a comprehensive guide to the fleshy fungi (Second ed.). Berkeley: Ten Speed Press. pp. 476–477. ISBN 978-0-89815-169-5.