Re-Introducing Gymnopilus arenicola

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Myco-A-E

Registered: 11/11/25
Posts: 559

Re-Introducing Gymnopilus arenicola

#29639008 - 08/03/26 02:43 AM (1 month, 8 days ago)

This name appears to be absent from iNaturalist!

Gymnopilus arenicola Hesler, North American Species of Gymnopilus, Mycologia Memoir #3: Pages 69-70 (Year 1969)

https://drive.proton.me/urls/GEKYDEDGMR#SNlOB06COxey

The following description is from North American Species of Gymnopilus, Pages 69-70 (Year 1969).

Pileus 15-30 mm broad, obtuse, expanding to nearly plane or broadly umbonate, surface dull and unpolished or minutely fibrillose, color "zinc orange" or duller and near "tawny," evenly colored or disc finally paler and yellowish.

Context pallid; odor and taste mild.

Lamellae adnate to slightly adnexed, close, moderately broad, "burnt sienna" at maturity, 2-3 tiers of lamellulae, edges even.

Stipe 2-3 cm long, 1.5-2.5 mm thick, surface dull brown, equal, solid, more or less fibrillose-striate, in age dingy over all but base not appreciably darker, brownish within.

Veil none.

Spores 7-8 X 3.5-4.5 μ, ellipsoid to slightly pip-shaped, at times subfusoid, slightly inequilateral, verruculose, no germ pore, ferruginous in KOH, dextrinoid.

Basidia 24-28 × 5-6 μ, 2-4-spored.

Pleurocystidia 20-27 × 4-5 μ, ventricose; cheilocystidia 15-28 × 3-7 μ, ventricose or flask-shaped, subcapitate or capitate.

Gill trama of subparallel hyphae, 3-6 μ broad; subhymenium not distinctive.

Pileus trama radial.

Cuticle a dark-brown, conspicuous zone of repent hyphae, the surface hyphae brown, and often incrusted; pileocystidia none.

Caulocystidia 14-22 × 3-5 μ, ventricose to clavate, mostly with a brown contents.

Clamp connections present.

Yellow pigment, soluble in KOH, present in gill trama.

HABIT, HABITAT, AND DISTRIBUTION- On soil, Washington, September.

MATERIAL STUDIED - WASHINGTON: Smith 47448, type, on sandy soil, along a trail, Longmire, September 13, 1954; 47449.

OBSERVATIONS - Its color, mild taste, terrestrial habitat, lack of a veil, and radially arranged pileus trama are the chief distinguishing characters. The relationship of G. arenicola to other terrestrial species is described under G. humicola.

Edited by Myco-A-E (08/03/26 03:00 AM)

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Alan Rockefeller
Mycologist

Registered: 03/10/07
Posts: 48,928
Last seen: 17 hours, 9 minutes

Re: Re-Introducing Gymnopilus arenicola

[Re: Myco-A-E]

1
#29639272 - 08/03/26 12:25 PM (1 month, 7 days ago)

I created the name Gymnopilus arenicola on iNaturalist.