species fungus family called bleeding yellow orange juice injured distinguishing features include upper stem surface decorated tiny brown fibers gills pale yellow edges reddish brown caps smooth margin wide known united_states canada grows scattered groups leaf litter forests summer autumn originally described collections associated beech frequently found eastern north american oaks taxonomy species described american mycologist based specimens collected previous year michigan naming illegitimate previously published smith changed specific epithet monograph north american species smith credited early collections fungus species description specialist agreed smith decision change epithet concluding written adequate description conceded possibility excluded day overlooked 19th century booklet turn containing description description cap broad initially convex later broadly eventually cap disc central region cap slightly depressed cap margin initially touches stem expands somewhat extreme margin marked small lines grooves ridges cap moist cap initially covered white later leave smooth surface disc brownish young soon develops reddish tones older specimens bay isabella lighter colored margins flesh buff colored orange yellow juice cut gills attachment stem close moderately crowded gills reaching stem gills narrow moderately broad young somewhat darker age edges finely stem long thick equal width stem base rooted leaves debris base covered short stiff hairs pressed flat surface surface covered sparsely minute brown stem dull reddish brown overall color fades near mushroom tissue cut injured dull reddish brown juice old specimens dull orange juice mushrooms distinctive taste odor spores narrowly broadly ellipsoid black blue black melzer reagent measure basidia spore bearing cells spored measure cheilocystidia plentiful arranged form sterile band edge gill measuring narrowly tapered end smooth dark reddish contents pleurocystidia cystidia gill face similar appearance cheilocystidia far abundant gill tissue yellowish brown stained tissue cap consists layers outer surface comprises thin cuticle narrow hyphae filled dark reddish material underlying layer region swollen like cells remainder cap tissue consists narrower hyphae layers tissue beneath cuticle stain brown stem tissue contrast dark brown similar species bleeding distinguish species commonly encountered common widely distributed smaller cap diameter ranging additionally spaced gills stem color cap dark red juice similar stature non bleeding species field characteristics distinguish including like odor taste colored cap purple gray gills dark purple edges habitat distribution fungus saprobic derives nutrients breaking dead plant material leaves bark twigs fallen ground fruit bodies usually found growing groups scattered leaf litter beech beech forests summer autumn recorded growing found eastern north american oaks distribution includes states connecticut new_york ohio michigan vermont collected quebec canada
Mycena atkinsoniana