Psathyrella immaculata E. Horak & Griesser

Diagnosis fuente:NORDIC MACROMYCETES - VOL. 2 - Polyporales, Boletales, Agaricales y Russulales Varios autores - Nordsvamp-Copenhagen
Sp 7-8.5 x 3-4 um, subcylindric, with distinct germ pore. Cap 0.5-5 cm, conical, then convex to expanded with umbo, white, at centre pale ochraceous; veil in young stages covering cap and stem with (often) erect squamules; stem 4-10 * 0.2-0.4 cm, cylindric, white. Pleuro- and cheilocystidia lageniform to subutriform.-— Solitary or caespitose in Fraxinus swamps.
D: r.
P. immaculata Horak & Griesser