Candolleomyces candolleanus

Candolleomyces candolleanus (formerly known as Psathyrella candolleana) is mushroom in the family Psathyrellaceae. It is commonly found growing in small groups around stumps and tree roots on lawns and pastures[2] in Europe and North America. In 2014, it was reported from Iraq.[3] The coloring varies between white and golden brown. The cap is tan when young,[2] growing to 2–8 cm (1–3 in) in diameter,[4] initially conical, later becoming rounded and finally with upturned margins in maturity. The cap margin is irregular and radially asymmetrical—a defining characteristic of this species. It can retain veil fragments on the edge and center.[2] The white stalk[2] is 4–10 cm (1.5–4 in) tall and 3–7 mm wide.[4] The spore print is purple-brown, while spores are smooth and elliptical, measuring 6.5–8 by 4–5 µm.[5] The specific epithet candolleanus honors Swiss botanist Augustin Pyramus de Candolle.[6]

Candolleomyces candolleanus
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Fungi
Division: Basidiomycota
Class: Agaricomycetes
Order: Agaricales
Family: Psathyrellaceae
Genus: Candolleomyces
Species:
C. candolleanus
Binomial name
Candolleomyces candolleanus
(Fr.) D. Wächt. & A. Melzer (2020)
Synonyms[1]
  • Agaricus violaceolamellatus DC. (1805)
  • Agaricus candolleanus Fr. (1818)
  • Hypholoma candolleanum (Fr.) Quél. (1872)
  • Drosophila candolleana (Fr.) Quél. (1886)
  • Psathyra candolleana (Fr.) G.Bertrand (1901)
  • Psathyrella candolleana (Fr.) Maire (1937)

While it is edible and may have a good flavor, it is not recommended due to its thin flesh, alleged poor culinary value and consistency, as well as difficulty in identification.[2][7][8]

One similar species is Psathyrella gracilis.[4] Some species may have darker caps when young, drying to match that of P. candolleana.[2]

See also

References
  1. "Candolleomyces candolleanus (Fr.) D. Wächt. & A. Melzer 2020". MycoBank. International Mycological Association. Retrieved 2022-07-05.
  2. Trudell, Steve; Ammirati, Joe (2009). Mushrooms of the Pacific Northwest. Timber Press Field Guides. Portland, OR: Timber Press. p. 202. ISBN 978-0-88192-935-5.
  3. Al-Habib MN, Holliday JC, Tura D (2014). "The pale brittle stem mushroom, Psathyrella candolleana (higher Basidiomycetes): An indigenous medicinal mushroom new to Iraq". International Journal of Medicinal Mushrooms. 16 (6): 617–22. doi:10.1615/intjmedmushrooms.v16.i6.110. PMID 25404226.
  4. Davis, R. Michael; Sommer, Robert; Menge, John A. (2012). Field Guide to Mushrooms of Western North America. Berkeley: University of California Press. pp. 233–234. ISBN 978-0-520-95360-4. OCLC 797915861.
  5. Huffman DM, Tiffany LH, Knaphaus G, Healy RA (2008). Mushrooms and Other Fungi of the Midcontinental United States. University of Iowa Press. p. 65. ISBN 978-1-58729-725-0.
  6. Evenson VS. (1997). Mushrooms of Colorado and the Southern Rocky Mountains. Big Earth Publishing. p. 136. ISBN 978-1-56579-192-3.
  7. Jones, Julie. "Psathyrella candolleana". Burke Herbarium Image Collection. Retrieved 2022-08-01.
  8. Miller Jr., Orson K.; Miller, Hope H. (2006). North American Mushrooms: A Field Guide to Edible and Inedible Fungi. Guilford, CN: FalconGuide. p. 238. ISBN 978-0-7627-3109-1.
Candolleomyces candolleanus
View the Mycomorphbox template that generates the following list
Gills on hymenium
Cap is conical or convex
Hymenium is adnate or seceding
Stipe is bare or has a ring
Spore print is brown
Edibility is edible but not recommended

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