Psilocybe alutacea

Psilocybe alutacea Y.S. Chang & A.K. Mills



Macroscopic feat.:
  • Cap/Pileus: 10-13 mm broad, conical or convex, subviscid, hygrophanous, glabrous, striate, leathery brown to ochraceous brown.
  • Gills/Lamellae: Adnate, semi, grayish brown, at times slightly unevenly colored, with white edges.
  • Stem/Stipe: 25-46 mm x 1-2.5 mm, cylindrical, stuffed, pale brown, fibrillose bluing occasionally where damaged.

Microscopic feat.:
  • Basidio/Spores: 11.7-15.8 (-16.7) x 7.9-9.2 µm, ellipsoidal, germ pore distinct, broad.
  • Basidia: 25.8-34.2 x 9.2-12.1 µm, 4-spored, hyaline, obovate or clavate.
  • Cheilocystidia: 22.5-35.9 (-44.2) x 5-10 µm, hyaline, long-necked, 6.7-15 µm.
  • Pleurocistidia: Rare, 17.5-30.4 x 4.6-10 µm, lageniform, long-necked.
  • Subhymenium: Subcellular.
  • Trama: Regular, pale brown (5% KOH), with hyphae 3.3-15 µm broad.
  • Epicutis: A layer of subgelatinised, encrusted hyphae with brown pigments, 2.5-5 µm broad, clamped.

Season: From when the fall rains begin until the first freezes. Liberty caps like cool temperatures, around 50 degrees Fahrenheit and lots of rain.

Habitat: Solitary to subgregarious on cow dung Reported from Western Australia, New Zealand, but was described in Tasmania. "Predominantly on nutrient-poor grasslands and pastures (Noordeloos 1999, p. 45), rarely on dung, in contrast to the new species. Mating crosses between isolates of Psilocybe semilanceata and Psilocybe alutacea always produced negative pairings." Y. S. Chang, G. M. Gates and D. A. Ratkowsky Some new species of the Strophariaceae (Agaricales) in Tasmania. Australasian Mycologist 24, 53-68

Notes: This species shares many macro and micromorphological characteristics with Psilocybe semilanceata, Psilocybe alutacea appears to be close to the blueing temperate dung loving species, It has been put into section Semilanceatae by Dr. Guzmán.

source - www.shroomery.org

Pictures at www.mushroomobserver.org

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