Polyporus tuberaster

Polyporus tuberaster

Secure  (NatureServe)[1]
Scientific classification
Domain: Eukaryota
Kingdom: Fungi
Division: Basidiomycota
Class: Agaricomycetes
Order: Polyporales
Family: Polyporaceae
Genus: Polyporus
Species:
P. tuberaster
Binomial name
Polyporus tuberaster
(Jacquin ex Persoon) Fries 1821

Polyporus tuberaster, commonly known as the tuberous polypore[2][3] or stone fungus,[4] is a species of fungus in the genus Polyporus.[5] It is easily identified by the fact that it grows from a large sclerotium that can resemble buried wood or a potato.[4]

The yellow-brown cap is 4–15 centimetres (1+12–6 in) wide[4] and ranges from convex to flat and even funnel-shaped.[6] The whitish stalks can grow upwards of 10 cm high and 2–4 cm wide.[6] The spores and spore print are white.[4][6]

The species is edible but also tough[6] unless young and well cooked.[4]

References

  1. ^ NatureServe. "Polyporus tuberaster". NatureServe Explorer. Arlington, Virginia. Retrieved 18 May 2025.
  2. ^ "Polyporus tuberaster, Tuberous Polypore fungus". first-nature.com. Retrieved 2024-02-16.
  3. ^ says, Claus S. "Tuberous Polypore". Wild Food UK. Retrieved 2024-02-16.
  4. ^ a b c d e Arora, David (1986) [1979]. Mushrooms Demystified: A Comprehensive Guide to the Fleshy Fungi (2nd ed.). Berkeley, CA: Ten Speed Press. pp. 563–64. ISBN 978-0-89815-170-1.
  5. ^ "Polyporus tuberaster in Mycobank".
  6. ^ a b c d Davis, R. Michael; Sommer, Robert; Menge, John A. (2012). Field Guide to Mushrooms of Western North America. Berkeley: University of California Press. pp. 337–338. ISBN 978-0-520-95360-4. OCLC 797915861.
Polyporus tuberaster
Pores on hymenium
Cap is depressed or umbilicate
Stipe is bare
Spore print is white
Ecology is saprotrophic
Edibility is edible