commonly known cap species mushroom family considered little brown mushroom unknown edibility distinctive thick covering coarse hairs differentiated members slightly larger cap size reaches diameter white gills underside cap crowded closely free attachment stem saprobic grows dead wood deciduous trees late summer autumn fungus found commonly eastern north_america collected portugal korea variety var found eastern north_america distinguished longer spores taxonomy classification species named american mycologist based specimens found near albany new_york later transferred genus given current italian botanist classified section genus according arrangement species elongated spores typically lack cystidia sides gills phylogenetic analysis species fungi parasitic previously included demonstrated formed clade conclusions analysis based dna sequences dna internal inconsistent morphology based classification given singer mushroom commonly known cap description little brown mushroom cap diameter convex approaching flat shape typically small distinctive depression centre cap densely dry concentric zones color texture cap cream hairs set lines white gills close narrow free nearly free stem gills stem height thick like cap densely covered hairs stem hollow cap layer white flesh spore print white smooth elliptical spores size basidia spore bearing cells spored club shaped measure like cells hymenium lack slender projections known attach spores range shape club shaped cylindrical fuse like cheilocystidia cystidia found edges gills cylindrical club shaped irregular branched coral like pleurocystidia cystidia found gill face absent hairs cap surface roughly cylindrical irregular base hairs stem similar cap hairs cap stem hairs meaning stained yellowish brown reddish brown melzer reagent clamp connections present tissues variety reduced species originally described based specimens found near variety variety found eastern north_america longer spores nominate variety measuring according differs typical variety having buff colored cap stem pale pinkish gills edibility fruit bodies distinct odor mild slightly taste edibility known certainty author lists species poisonous suspect similar species similar appearance members slightly larger cap species similar distinguished lighter colored cap appearance distribution distribution ecology saprobic living debris roots contains wood decaying break mushrooms grow individually small clusters found august september north_america distributed east rocky_mountains recorded far west indiana texas europe collected portugal collected south_korea
Crinipellis zonata