Marasmiellus pachycraspedum Noordel.

Diagnosis original: 
FLORA AGARICINA NEERLANDICA - VOLUME 3 - Tricholomataceae (2)
Pileus 5-12 mm, convex, hygrophanous, brown when moist, on drying pallescemt to buff with reddish tinge (probably about Mu. 7.5-5 YR6-5/2-4), remaining darker at centre, opaque, minutely tomentose. 6-5/2-4), remaining darker at centre, opaque, minutely tomentose. Lamellac, L = 16-20, 1 = 1-2, narrowly adnate, ventricose, thickened with remarkable thick, concolorous or slightly darker edge. Stipe 10 x]-1.5 mm, equal, dark brown, concolorous with centre of pileus, with dense, sordid white flocculose covering. Context thin, concolorous with surface. Smell and taste indistinct. Spore print colour not known, probably white. Spores (6.0-)6.5-8.0 x 4.5-5.5 um, Q = 1.2-1.7, Q = 1.4, broadly ellipsoid to ellipsoid. Basidia 20-35 x 7-12 jm, 4-spored, clamped. Lamella edge almost sterile. Cheilocystidia abundant, 60-120 x 10-18 jum, clavate, brown-inespcecrialuly sint upepedr p,art . Pileipela lcuitsis of radially arranged, cylindrical hyphae with slightly swollen terminal of radially arranged, cylindrical hyphae with slightly swollen terminal elements, with or without small warts and finger-like projections (poorly developed Rameales-structure). Stipitipellis a cutis with scattered trichodermal clusters of slightly thick-walled, coralloid caulocystidia, 20-60 x 4-$(-10) pum. Clamp- connneumcertouiso inn sal l tissucs. HABITAT& DISTR. — Terrestrial between mosses on rather exposed coastal sanddune. Very rare, only known from the type-locality (Texel: Slufter). Oct.