Name: Psilocybe cinnamomea J.F. Liang, Yang K. Li & Ye Yuan
Version: 1

First person to use this name on MO: Erlon Bailey

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Rank: Species

Status: Accepted

Name: Psilocybe cinnamomea

ICN Identifier: missing

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Author: J.F. Liang, Yang K. Li & Ye Yuan

Citation: Mycotaxon 129 (2): 216 (2015) [MB#807941]


Domain: Eukarya

Kingdom: Fungi

Phylum: Basidiomycota

Class: Agaricomycetes

Order: Agaricales

Family: Hymenogastraceae

Genus: Psilocybe

Notes on Taxonomy: [Edit]

Literature: Li,Y.K;Yuan,Y & Liang, J.F;. 2015. Morphological and molecular evidence for a new species of Psilocybe from southern China. Mycotaxon. 129(2):215-222

Brief Description: [See More | Edit]

Basidiomata small. Pileus 20-40 mm in diameter, campanulate when young, expanding to subconvex or plano-convex, slightly papillate at the apex, glabrous, hygrophanous, cinnamon (5B3-5C6) when young, surface pale (2A2) to cream (4A2-4), light orange (5A4-5B7) at the disk when mature, yellowish brown (5C4-8) in dry specimens, blackish blue with age or when bruising, margin with white floccose remnants from the veil. Lamellae subadnate or sinuate, crowded, unequal, greenish white to pale green (28A2-3). Stipe 20-80 × 2-5 mm, uniform or slightly thickened at the base, somewhat flexuous, hollow, whitish to pale green (5B3) at the upper, grayish orange (5B3-5) to brownish yellow (5C6-8) at the lower part, covered with milk white (1A2) fibrillose, bluing, blackish when dried. Context thin, whitish. Odor or Taste not recorded. Annulus absent.

Basidiospores (5.5-)6.5-7.5(-8) x (3-)4-4.5(-5) µm, ellipsoid to subovoid in face view, subellipsoid in side view, sometimes subventricose, smooth, thinwalled, wall about 0.3-0.5 µm thick, with a distinctly broad germ pore and a short apical appendage, yellowish-brown pigment in KOH. Basidia 7-13.5 × 3.0-6.0 µm, 4-spored, rarely 2-spored, hyaline, clavate, sometimes with a median constriction. Cheilocystidia common, (17.5-)20-30 × 6.5-10 µm, unbranched, polymorphic (subcylindrical, clavate-mucronate, utriform, lageniform, fusiform), frequently with a median constriction and with a short or long neck, hyaline in 5% KOH. Pleurocystidia abundant, 17.5-32 × 5.5-10.0 µm, clavate, narrowly fusiform to fusiform, frequently with a short neck, the neck ≤5 µm long, unbranched, hyaline, walls smooth. Pileipellis a subcutis, not subgelatinized, 9-13 µm thick, hyaline, hyphae 3-5 µm diam., rarely with surface subcylindric or fusiform cystidioid elements 7.5-17.5 × 4.5-7.5 µm. Caulocystidia rare, 9.5-85 × 5-11 µm, variable in shape (subcylindrical or attenuate). Clamp connections common.

Habitat & Distribution – Gregarious to caespitose on rotten wood or nutrient rich soils in a subtropical evergreen broad-leaved forest. Known only from the type locality.


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