Marasmius pruinatus Berk. & M.A. Curtis

Diagnosis original:  PERSOONIA - A MYCOLOGICAL JOURNAL - VOLUME 13 - PART 3 - 1987 Rijksherbarium, Leiden, The Nederlands
Pileus 5—10 mm broad, obtusely convex or obsoletely papillate with thin, encurved margin, white becoming tinged with yellow, fleshy horny, pruinose. Lamellae decurrent, subdistant, very narrow, 1 mm broad, shining, white. Stipe 1S—30 x 1—2 mm, equal, rigid, white, pruinose base white villose. Spores 9.0—11.5 x 3.5—5.5 pum, average 10.4 x 4.9 um, Q = 2.0—2.4, average Q =2.2, ellipsoid, slightly broader at apex. No intact basidia nor cystidia seen. Pileipellis a cutis with transitions to a trichoderm, made up of radially arranged cylindrical hyphae cutis with transitions to a trichoderm, made up of radially arranged cylindrical hyphae with strongly developed ramealis structure. Clamp-connections not seen with certainty. Chemical reactions.—No part of basidiocarps amyloid or dextrinoid in Melzer’s reagent.