commonly known ivory species mushroom family cap initially conical shape convex reach dimensions cap color ivory white yellowish white yellowish center tubular stems long thick long coarse white hairs bases mushroom found europe middle_east north_america grows scattered dense groups conifers oak woods taxonomy classification naming described swedish mycologist assigned current american mycologist transferred species genera respectively singer later changed mind considered species resulting transfers considered synonyms synonym gray placed section genus alongside species specific epithet yellow white compound latin yellow white mushroom common ivory description cap diameter conical young somewhat bell shaped broadly times nearly convex develop like structure center cap margin initially pressed stem maturity curves inward slightly cap surface smooth moist partially translucent outline gills underneath cap seen mushroom changing color loses gains moisture cream buff yellowish initially paler white margin fading buff center yellowish white margin dry flesh yellowish white thick disc thin moderately fragile distinctive odor taste gills ascending somewhat hooked toothed narrow broad nearly equal width slightly age close gills reach stem tiers short gills extend fully cap margin stem develop veins running gills white white edges whitish appearance consistency stem long thick equal tubular somewhat elastic particularly fragile base stem covered sharp straight stiff white hairs surrounded white base stem smooth apex moist translucent slight running white pale yellow color considered microscopic characteristics spores ellipsoid basidia spore bearing cells spored pleurocystidia cheilocystidia cystidia found face edge gill respectively similar structure abundant long narrow measure neck substance smooth hyaline flesh gill pale yellow flesh cap thin poorly differentiated thin membrane somewhat differentiated pronounced old caps remainder somewhat enlarged cells stain pale yellow similar species bears resemblance members genus distinguished species white yellowish cap differences shape spores cystidia stem spanish species newly described similar appearance differs distribution pigment cap differential response blue positive negative habitat distribution fruit bodies grow scattered densely needle beds conifers oak woods months generally rare species occurs large quantities certain united_states collected colorado idaho michigan north_carolina oregon washington wyoming florida kansas found europe israel species listed concern danish red data book
Mycena flavoalba