Descripción original Description: Pileus 5-20 mm, campanulate or hemispherical, then convex, finally applanate with depressed centre. with deflexed then straight margin, not or only slightly hygrophanous, not or indistinctly translucently striate, pale grey or ivory-grey, almost white, with slightly sulcate margin, dull, glabrous. Lamellae distant, L= 12-22, 1= 1-3, decurrent, arcuate, thickish, sometimes furcate and glabrous. Lamellae distant, L= 12-22, 1= 1-3, decurrent, arcuate, thickish, sometimes furcate and intervenose, white to pale grey with paler edge. Stipe 10-25 x 1.5-3 mm, cylindrical, equal or attenuated towards base, white, dry, glabrous. Context thin, white. Smell and taste indistinet. Spores (5.5) 7.0-9.5 (10) x (3.0) 3.5-5.0 um, E= 1.7-2.4,0=2.0, ventricose-fusiform, ellipsoidfusoid, thin-walled, hyaline. Basidia 21-28 x 6.0-8.0 pm, 4-spored, clavate. Basidioles 12-27 x3.0-7,5 um, cylindrical to clavate. Lamella edge fertile. Cheilocystidia (marginal cells) scattered, inconspicuous, sometimes almost absent, mixed with basidia, 18-33 x 6.0-10.0 um, clavate, fusoid, rarely subeylindrical, thin- to slightly thick-walled. Pleurocystidia absent, Hymenophoral trama made up of thin- to slightly thick-walled, hyaline, up to 22 pim wide hyphae, composed of eylindrical, ellipsoid to fusoid elements. Pileipellis a thin cutis made up of eylindrical, + radially arranged. 1.5-10.0 puim wide hyphae, with (sub)hyaline to pale greyish walls in KOH, with eylindrical or narrowly clavate, obtuse, up to 25 x 2,0-5.0 um large diverticulae, Pileocystidia absent. Subpileipellis of broadly fusoid, ellipsoid, up to 20 pm wide cells. Stipitipellis a cutis of parallel. cylindrical, slightly thick-walled., up to 6 um wide hyphae, smooth or with scattered projections. Caulocystidia at apex12-43 x 3.0)-7.0 um, appressed to erect, cylindrical to clavate, thin- to slightly thick-walled, hyaline, sometimes in the form of lateral projections: at base 30-54 x $.0-9,0 (15) pm, cylindrical, fusoid, sublageniform, slightly but distinetly thick-walled, Clamp-connections present. Chemical reactions: Neither spores nor tissues amyloid or dextrinoid. Ecology: Saprotrophic, among mosses and grass in poorly manured grasslands and lawns, particularly on heavy. clayey soil: KREISEL (1987) mentioned its presence only on caleareous soils, GROGER
(1997) found it directly on dead grass stem parts
