Name: Leratiomyces percevalii (Berk. & Broome) Bridge & Spooner
Most Confident Observations:
Copyright © 2011 Byrain
Copyright © 2012 Tim Sage (NMNR)
Copyright © 2011 Byrain
Copyright © 2017 Jose33
Version: 5
Previous Version 

First person to use this name on MO: Darvin DeShazer
Editors: walt sturgeon, Joseph D. Cohen


Rank: Species

Status: Accepted

Name: Leratiomyces percevalii

ICN Identifier: missing

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Author: (Berk. & Broome) Bridge & Spooner

Citation: Mycotaxon 103: 117 (2008)

Deprecated Synonyms: Psilocybe percevalii (Berk. & Broome) P.D. Orton, Agaricus percevalii Berk. & Broome, Stropharia percevalii (Berk. & Broome) Sacc.


Domain: Eukarya

Kingdom: Fungi

Phylum: Basidiomycota

Class: Agaricomycetes

Order: Agaricales

Family: Strophariaceae

Genus: Leratiomyces

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

Cap: 2.5-8 cm; convex, becoming broadly convex or broadly bell-shaped; sticky when fresh but soon dry; honey yellow when young, quickly becoming yellowish, whitish, or dingy olive; smooth or finely hairy in places; the margin adorned with hanging white partial veil remnants, especially when young.

Gills: Attached to the stem or beginning run down it; close; whitish at first, becoming purplish gray to purple-black.

Stem: 4-13 cm long; up to about 1 cm thick; equal or tapered to base; dry; with a ring zone that darkens with falling spores; finely hairy; whitish, developing reddish brown discolorations from the base upwards; base usually hairy, with prominent mycelial threads.

Flesh: Whitish.

Odor and Taste: Odor not distinctive, or radish-like; taste similar.

Spore Print: Dark purple-brown to blackish.

Chemical Reactions: KOH on cap surface yellow.

Microscopic Features: Spores 13-16 × 7-9 µ; smooth; more or less elliptical; with a germ pore. Chrysocystidia present on gill faces but inconspicuous (more easily demonstrated in button-stage specimens than in mature specimens, where they are often absent); clavate to irregularly clavate or submucronate; scarcely projecting; to about 50 × 8 µ. Cheilocystidia abundant; to about 70 × 10 µ; clavate to cylindric; flexuous.

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