Public Description of Leratiomyces ceres (Cooke & Massee) Spooner & Bridge

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Name: Leratiomyces ceres (Cooke & Massee) Spooner & Bridge
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Description status: Unreviewed

Taxonomic Classification:

Domain: Eukarya
Kingdom: Fungi
Phylum: Basidiomycota
Class: Agaricomycetes
Order: Agaricales
Family: Strophariaceae

General Description:

Cap: 2-6 cm; convex, becoming broadly convex, broadly bell-shaped, or nearly flat; sticky when fresh, but soon dry; scarlet to reddish orange or reddish brown; smooth; when young adorned with white partial veil remnants.

Gills: Attached to the stem, often by a notch; close; pale yellow at first, later purplish gray to purple-black; with whitish to pale yellow edges when mature.

Stem: 3-7 cm long; up to 1 cm thick; dry; with or without a ring zone; fairly smooth or finely hairy; whitish to yellowish, staining reddish orange with maturity; base often with whitish to yellowish mycelial threads.

Flesh: Whitish.

Odor and Taste: Not distinctive.

Spore Print: Dark purple-brown to purple-gray.

Chemical Reactions: KOH on cap surface dark gray.

Microscopic Features: Spores 9-14 × 5.5-9 µ; smooth; elliptical; with a germ pore; brown in KOH. Chrysocystidia present on edges and faces of gills; scattered to abundant; to about 50 × 15 µ; clavate to mucronate; thin-walled; contents hyaline to yellow in KOH. Cheilocystidia to about 60 × 10 µ; cylindric to fusoid; sometimes capitate. Pileipellis a thin ixocutis of cylindric elements over a nearly cellular subpellis.

Saprobic; growing scattered or gregariously on wood chips or in sawdust, lawns, gardens, and so on; fall through spring




Kuo, M. (2009, February). Leratiomyces ceres. Retrieved from the MushroomExpert.Com Web site:


Current Name:
Leratiomyces ceres (Cooke & Massee) Spooner & Bridge, Mycotaxon 103: 116 (2008)

Agaricus ceres Cooke & Massee, Grevillea 16(no. 79): 72 (1888)
Psilocybe ceres (Cooke & Massee) Sacc., Syll. fung. (Abellini) 9: 140 (1891)

Description author: walt sturgeon (Request Authorship Credit)
Description editor: Nathan Wilson