Observation 331196: Cyclocybe Velen.

When: 2018-09-02

Collection location: Buncombe Co., North Carolina, USA [Click for map]

Who: Mike Hopping (AvlMike)

No specimen available

Notes:
Habitat: mulch of uncertain etiology
Cap: diameters to 66 mm, waxy dry, initially convex, uplifted margin at maturity, smooth, medium brown, soon lightening peripherally, hygrophanous
Gills: close, adnate with a decurrent tooth, pale but darkening to brown with persisting whitish, slightly serrate edges
Stipe: 50 mm long x 10 mm at apex and 6 mm at base. Whitish, white pruinose above the ring, brown fibrillose below it. Flesh white, solid, tough
Partial veil: membranous, felty, radial ridges on the upper surface, irregularly lumpy below. Separating from both the cap margin and stipe, persisting as a donut that falls down the stipe
Spore print: cigar brown
Odor & taste: Sharp odor of creosote. Taste mild

Images

Agrocybe sp creosote.jpg

Proposed Names

55% (1)
Based on microscopic features: spores brown in water, smooth, long elliptic, 9.5-12.5 × 4.5-5.5 um
Based on chemical features: KOH amber in dark brown center of cap, greenish-yellow peripherally
56% (1)
Recognized by sight

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