species fungus family described new science american found eastern united_states canada grows ground coniferous mixed forests mycorrhizal association deciduous trees especially oak fruit bodies mushrooms red broadly convex caps diameter small dark reddish pores underside pale yellow stipe measures long thick parts fruit body quickly stain blue injured touched taxonomy species described american monograph fungi michigan type collection smith golf course near michigan september kept university_of_michigan classified section genus characterized immediately turn blue cutting narrow pores usually red occasional presence fruit bodies according scheme proposed form cystidia cap cuticle important species section study found major consistent microscopic differences specific epithet refers similarity means yellow dirty brown description fruit bodies convex caps measure diameter cap surface dry slightly sticky somewhat texture color reddish reddish brown orange red flesh bright yellow blue cut odor slightly metallic taste cap underside tubes comprising surface long near cap stipe slightly depressed dark reddish pores small round numbering pores stipe measures long thick solid hollow stuffed roughly width length stipe color pale yellow grading reddish base pressed yellow hairs parts fruit body cap surface flesh pores stipe quickly stain blue injured touched spore print olive brown spores somewhat fuse shaped face view profile view smooth surface tiny dimensions walls thick basidia spore bearing cells club shaped spored measure thick pleurocystidia tube walls neck cheilocystidia edges narrowly club shaped slightly smaller measuring pleurocystidia tend basidia cap cuticle comprises thick layer narrow hyphae measuring arranged hyphae emerge roughly parallel like hairs perpendicular cap surface hyphae stain red mounted melzer reagent yellow potassium clamp connections absent hyphae similar species known mississippi cap changes color according age initially dark reddish later reddish brown maturity fading brownish orange brownish pink dull yellow finally turning dull yellow age pale yellow stipe lacks reddish coloration hairs found base smaller spores measuring similar appearance distinguished yellow stipe orange brownish dots blue found southeastern united_states grows conifers reddish stipe fine upper half habitat distribution mycorrhizal fungus grows association deciduous trees especially oak genus fruit bodies grow scattered groups ground deciduous mixed forests appear july october eastern north american species mushroom found new_england west great lakes north quebec canada
Boletus subluridellus