The ‘suburban Psathyrella’, Psathyrella candolleana (Fr.) Maire.
Synonyms
Agaricus appendiculatus Bull.
Herbier de la France 9: tab. 392 (1789)
Agaricus appendiculatus var. lanatus Berk. & Broome
Ann. Mag. nat. Hist., Ser. 5 7 (1881)
Agaricus candolleanus Fr.
Observ. mycol. (Havniae) 2: 182 (1818)
Agaricus catarius Fr.
Hymenomyc. eur. (Upsaliae): 296 (1874)
Agaricus egenulus Berk. & Broome
Ann. Mag. nat. Hist., Ser. 3 7: 375 (1861)
Agaricus felinus Pass.
Nuovo Giorn. Bot. Ital. 4: 82 (1872)
Drosophila candolleana (Fr.) Quél.
Enchir. fung. (Paris): 115 (1886)
Hypholoma appendiculatum (Bull.) Quél.
Mém. Soc. Émul. Montbéliard, Sér. 2 5: 146 (1872)
Hypholoma candolleanum (Fr.) Quél.
Mém. Soc. Émul. Montbéliard, Sér. 2 5: 146 (1872)
Hypholoma catarium (Fr.) Massee
Brit. Fung.-Fl. 1: 393 (1892)
Hypholoma egenulum (Berk. & Broome) Sacc.
Syll. fung. (Abellini) 5: 1040 (1887)
Hypholoma felinum Pass.
Syll. fung. (Abellini) 5: 1040 (1887)
Hypholomopsis appendiculata (Bull.) Earle
Bulletin of the New York Botanical Garden 5: 436 (1909) [1906]
Psathyra appendiculata (Bull.) G. Bertrand
Bull. Soc. mycol. Fr. 17: 278 (1901)
Psathyra candolleana (Fr.) G. Bertrand
Bull. Soc. mycol. Fr. 17: 278 (1901)
Psathyrella appendiculata (Bull.) Maire & Werner
Mém. Soc. Sci. Nat. Maroc. 45: 112 (1938)
Psathyrella egenula (Berk. & Broome) M.M. Moser
Kleine Kryptogamenflora, Edn 1: 206 (1953)
Psathyrella microlepidota P.D. Orton
Trans. Br. mycol. Soc. 43: 375 (1960)
Common names
Suburban Psathyrella
Common Psathyrella
Fringed crumblecap
Pale brittlestem
Psathyrelle de De Candolle (French)
Bleke franjehoed (Dutch)
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Description
Cap: 2-7 cm diameter, convex, broadly convex in age, white to light brown (cap color can be highly variable), initially with scattered small white scales, margin when young with hanging veil remnants; flesh thin, fragile, white.
Gills: adnate or seceding, close to crowded, initially whitish, later grayish or grayish purple, finally dark brown; abundant lamellulae.
Stem: 4-10 cm long, 2-7 mm thick, equal, hollow, fragile, white or very pale brown, often silky or scurfy.
Partial veil: membranous, white, rarely leaving ring.
Odor: ‘mushroomy’.
Taste: not distinctive.
Spores: 7-10 x 4-5 µm, ellipsoid to ovoid, smooth, with an apical germ pore, nonamyloid.
Spore print: dark brown or purple-brown.
Habitat: scattered or gregarious in lawns, gardens on or around old hardwood stumps, on buried roots or debris; widely distributed and very common in urban and suburban settings; late spring-early autumn.
Edibility: edible.
Medicinal properties
Antitumor effects
Polysaccharides extracted from the mycelial culture of P. candolleana and administered intraperitoneally into white mice at a dosage of 300 mg/kg inhibited the growth of Sarcoma 180 and Ehrlich solid cancers by 70% and 80%, respectively (Ohtsuka et al., 1973).
Antibacterial effects
P. candolleana was shown to have antibacterial activity against various Gram+ bacteria (Bacillus cereus, Bacillus subtilis, Staphylococcus aureus, Salmonella typhimurium and Candida albicans) (Colletto et al., 1999).
Links
Mushroom Expert
California Fungi
MushroomHobby.com
References
Coletto B, Ausilia M, Lelli P.
Antibiotic activity in Basidiomycetes. XII. Antibacterial and antifungal activity of 32 new strains.
Allionia (Turin). 1999 36:89-92.
Galland MC, Kemp RFO, Jurand MK.
Species problem in the Psathyrella candolleana complex.
Mycotaxon. 1979 8(2):329-32.
Ohtsuka S, Ueno S, Yoshikumi C, Hirose F, Ohmura Y, Wada T, Fujii T, Takahashi E.
Polysaccharides having an anticarcinogenic effect and a method of producing them from species of Basidiomycetes.
UK Patent 1331513, 26 September 1973.
Prostenik M, Burcar I, Castek A, Cosovic C, Golem J, Jandric Z, Kljaic K; Ondrusek V.
Lipids of higher fungi. Part 3. The fatty acid and 2-hydroxy fatty acids in some species of basidiomycetes.
Chemistry and Physics of Lipids. 1978 22(2):97-104.
Riedl H.
Remarks on Psathyrella candolleana.
[Bemerkungen uber Psathyrella candolleana (Fr.) Maire in Maire et Werner]
Osterr Bot Z. 1965 112(1/5):94-100.
Vanwaveren EK.
Checklist of synonyms, varieties and forms of Psathyrella Candolleana.
Trans Brit Mycol Soc. 1980 75(DEC):429-37.
