Psilocybe banderillensis

Psilocybe banderillensis Guzmán & Bononi

Psilocybe banderiliensis var. paulensis
Psilocybe banderiliensis Guzmán
Psilocybe paulensis (Guzmán & Bononi) Guzmán

Macroscopic feat.:
  • Cap/Pileus: 5-12 mm diam., conic campanulate, subumbonate, glabrous, smooth to slightly striate at the margin when humid, subviscid to lubricous, hygrophanus, chocolate brown or reddish brown to darker, in dry blackish.
  • Gills/Lamellae: Adnate, pale dark violaceous with somewhat whitish edges.
  • Stem/Stipe: 20-50 x 1-1.5 mm, uniform, subsinuous, reddish brown, covered by whitish small floccose scales, hollow, cartilagineus. Veil farinaceous, staining slightly blue. All parts blackish brown in KOH.

Microscopic feat.:
  • Basidio/Spores: (5-) 5.5-6.5 (-7) x 5-6 x 4-5 µm, rhomboid in face view but subellipsoid in side view, brownish, thick walled with a broad germ pore. Some spores are irregular in form.
  • Basidia: 15-20 x 5-8 µm, 4-spored, subventricose or subpyriform.
  • Pleurocistidia: 15-32 x 7-12 µm, abundant, hyaline to more commonly brown or reddish brown, sublageniform with short and thick neck or ventricose.
  • Cheilocystidia: 10-25 x 3-5 µm, hyaline, sublageniform, frequently irregularly branched, some are very irregular in form.
  • Subhymenium: Subparenchymatous, with incrusted yellowish brown pigment.
  • Trama: Regular, hyaline to pigmented with incrusted pigment on the walls. Surface of the pileus formed by elongated subgelatinized hyaline, brownish to hyaline hyphae,2-4 µm thick. Hypodermium with elongated to subcellular element, strongly incrusted, 3-6 µm diam. Clamp connections rare.

Habitat: Gregarious on bare soil in a trail of the subtropical (or mesophytic) fores. Fruiting in November.

Studied material: BRAZIL, Sao Paulo State, Mpio. de Cananéia, Ilha do Cardoso, Col. Guzmán 22960, November 18, 1982 (SP-177707 type) (XAL-Isotype).

Discussion: The form of the pleurocystidia, as well as the abundance, and the irregular form of the cheilocystidia, as well as the southern locality, are the features that separates this variety from the type, which is know only from the State of Veracrus, Mexico (Guzmán, 1978; 1983). These fungi belong to the Section Brunneocystidiatae Guzmán, distinguished by their brown pleurocystidia. All of them seem to be hallucinogenic mushrooms.

source - [19: 347]

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