fungus family found western north_america fruit bodies mushrooms characterized thick red brown caps red pores strong reaction observed mushroom tissue injured cut cap reach stipe long thick maturity mushroom found woodlands central california north southern oregon edibility mushroom known certainty poisonous recommended consumption similar red north_america including distinguished color cap degree network raised ridges stipe location taxonomy species named based specimens found california november changed discovered epithet different found china published fungus transferred molecular demonstrated lineage distinct latin means relating resembling description large solid mushroom convex somewhat flattened irregular cap reach maturity surface cap dry fibers cap color young specimens red mushrooms typically change brownish tones mature margin cap starts curved gradually curved downwards age pores underside cap wide angular red red orange tubes deep stipe lacks pattern yellow color covered red hairs especially near base stipe equal width thicker middle reaches dimensions long thick base stipe typically bent flesh thick yellow color like parts mushroom stain blue immediately cutting odor taste fruit bodies mild edibility known certainty authorities recommend avoid consuming blue red poisonous species implicated group california nature symptoms experienced probably type mushroom consumed microscopic characteristics produces dark olive brown spore print spores thick walled smooth ellipsoid somewhat shaped dimensions dark stained melzer reagent occasional presence large appear basidia spore bearing cells club shaped contain numerous measure cystidia present sides tubes measure clamp connections present hyphae chemical color tests help identify fruit bodies suspected drop potassium turn cap flesh orange turns cap cuticle red darker produces yellow flesh brown cap iron produces change pale grey color flesh cuticle acid causes flesh turn orange pink color reaction cuticle similar species red confused poisonous european species north american counterpart lighter colored caps pattern stipe highly variable species eastern north_america includes red range cap colors coating hairs near base stipe represent group species similar species found north_america trees conifers unlike dark brown nearly brown cap yellow stipe dense covering red dots distribution habitat mushrooms grow ground groups scattered fungus reported low elevation hardwood forests composed live oak california oregon fruiting occurs onset autumn rains usually october january mushroom difficult spot cap similar coloring leaves tree associated mushroom frequently buried leaves
Suillellus amygdalinus