Name: Psilocybe fimetaria (P.D. Orton) Watling
Most Confident Observations:
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Copyright © 2012 Andrew Tomlinson
Version: 4
Previous Version 

First person to use this name on MO: Alan Rockefeller
Editors: Erlon Bailey, Joseph D. Cohen


Rank: Species

Status: Accepted

Name: Psilocybe fimetaria

[#337844] Index Fungorum

[#337844] MycoBank

GSD Species Synonymy

Author: (P.D. Orton) Watling

Citation: Lloydia 30: 150 (1967)

Deprecated Synonyms: Psilocybe fimicola


Domain: Eukarya

Kingdom: Fungi

Phylum: Basidiomycota

Class: Agaricomycetes

Order: Agaricales

Family: Hymenogastraceae

Genus: Psilocybe

Notes on Taxonomy: [Edit]
Brief Description: [See More | Edit]

Pileus (5-) 10-25 (-36) mm in diam., conic to convex or subcampanulate to umbo- nate, slightly papillate or acutely umbonate, then expanded, glabrous, but a first with conspicuous appressed silky white fibrils from the veil, surface even but slightly striate at the margin mainly when moist, viscid, with a rather tough sepa- rable pellicle, hygrophanous, pale reddish brown to honey color, sepia or ochraceous, sometimes clay olive honey, or yellowish olive, drying to ochraceous-buff or yellowish from center outwards.

Lamellae adnate, sometimes with a slight tooth at the stipe, whitish clay or pale clay-buff to olivaceous buff, finally dark purplish brown, concolorous or usually with whitish edges.

Stipe (20-) 40-65 (-90) x (0.5-) 1-3 (-4) mm, equal or slightly subbulbous, often with a slightly swollen base, stuffed with white pith, then hollow; surface white, then brownish red, pale sepia or sepia-honey especially in the lower part, sometimes with gray blue-greenish linges at base, covered at first by a silky-fibrillose white coating from the veil.

Veil weil developed as a white cortina that forms a more or Jess membranous and permanent annulus, but sometimes remaining only as floccose fibrilis on the stipe, white or concolorous with the gills from the spore deposite.

Context whitish to ochraceous in the pileus, olive-honey under the gills, white or whitish in the stipe, soon dark Vandyke in lower part of stem; this color spreading upwards with age. Taste and odor farinaceous, especially in young stages or when eut. Bluing when injured.

Spore print dark violaceous brown.

Spores (9.5) 11-14 (-16) x 6.5-8.5 (-9.5) um, subellipsoid or ellipsoid both in face
and side view, thick-walled {1-1.5!-um), yellowish brown, with a broad germ pore. Basidia 28-34 × 8-11 um, 4-spored, rarely 2-spored, hyaline, subpyriform-
ventricose, with sterigmata 2-3 um wide at base.

Pleurocystidia absent.

Cheilocystidia 20-32 × 4-8 um, abundant, forming a sterile band, hyaline, thin walled, ventricose-fusiform or lageniform (or almost Urtica-hair shape), with a narrow or pedicellate base; neck flexuous and long 4-15 × 0.5-1.5 um, sometimes irregularly branched.

Subhymenium somewhat subcellular with globose and short elements, hyaline or brownish pale, not incrusted. Trama regular, hyaline. Epicutis formed by a thick hyaline layer with gelatinous, parallel hyphae, 1-3 um broad. Hypodermium hyaline to brownish, not cellular, but with elongated to subglobose elements, moderately incrusted. Clamp connections present, 4-14 um in diam., frequently branched.

- Beihefte zur Nova Hedwigia 74 (1983)

Descriptions: [Create]


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