Rancid Greyling

Tephrocybe rancida


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By Roger Phillips

Published 2006

Rancid Greyling Tephrocybe rancida (Fr.) Donk, in Grilli syn. Collybia rancida (Fr.) Quél. (illustrated 50% life size) Cap 1–4cm across, umbonate; leaden-grey with a whitish bloom at first; shiny when wet. Stem 40–80×3–7mm, base long rooting; concolorous with cap; lower part covered in a dense white tomentum, passing into base. Flesh greyish; taste and smell strongly of rancid meal. Gills free, crowded; grey. Spores 7–8×3–4.5¼, ellipsoid. Spore print white. Habitat solitary in deciduous woodland; early autumn to early winter. Occasional. Not edible due to rancid taste.

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