commonly known species fungus family type species genus like members genus lives remains mushrooms fungus produces small whitish fruit bodies caps wide held thin stems long underside cap closely spaced white gills broadly attached stem base stem embedded substrate small reddish brown somewhat resembles apple seed appearance distinguishes species similar overall appearance found europe north_america japan growing dense clusters species taxonomy phylogeny naming species described french naturalist 6th volume called publication referred transferred species called publication genus folded additional taxonomic synonyms include molecular phylogenetic analysis reported sequences establish forms group finding later publication specific epithet derived latin word mushroom commonly known called naked foot natural arrangement british plants description cap ranges shape convex shaped margin curved inward young flattened age margin curved downward straight cap shallow depression center shallow diameter small reaching maximum cap surface dry moist smooth covered fine soft hairs somewhat changing color depending level cap margin center cap pinkish buff whitish margin whitish overall matures flesh thin colored whitish light buff mushroom distinctive taste odor considered gills fused stem age running slightly length stem gill close individual gills whitish pinkish buff thin narrow moderately broad straight edges stem long roughly equal width length slender thread like flexible dry surface stem covered scales fine whitish powder lower portion hairs ranging delicate coarse color stem generally whitish pinkish buff handled stem interior hollow age stems originate dark reddish brown variable shape typically measuring surface initially smooth later interior solid white compared apple seed appearance typically connected thin strands resting structure allows fungus host reported spore print white individual spores smooth ellipsoid tear shaped profile ellipsoid face view dimensions non melzer reagent blue respectively basidia spore bearing cells hymenium club shaped cheilocystidia cystidia gill edge scattered long shape ranges cylinder roughly club shaped irregularly short approximately right angles main stem pleurocystidia cystidia gill face gill tissue interwoven hyphae non melzer reagent hyphae smooth thin walled measuring diameter cap tissue hyphae interwoven center cap oriented gills hyphae smooth thin walled diameter cap cuticle thin layer smooth thin walled hyphae oriented bent somewhat gelatinous measuring diameter occasionally cuticle stem layer parallel vertically oriented smooth thin walled hyphae diameter pale yellowish brown mounting solution stem moderately thin walled smooth cystidia resemble cylinders hyaline diameter clamp connections present hyphae tissues similar species similar size appearance grows spruce smaller grows remaining species closely resemble distinguished examining stem bases point attachment substrate roughly spherical light brown yellowish produce field distinguished dark reddish brown somewhat resembles microscope provides definitive way distinguishing hyphae rounded elongated character apparent fresh dried material species contrast produce habitat distribution known strictly parasitic needs host living saprobic way fruit bodies fungus found growing dense clusters remains mushrooms hosts include particularly pacific_northwest region united_states common abundant species definitively identified host fruit bodies slow decay available nearly year round substrate based field observations authors suggest produce fruit bodies decayed mushrooms produces heavily decayed mushrooms found europe north_america common summer autumn coinciding fruiting periods mushrooms reported japan
Collybia tuberosa