Tubes not alveolar Tubes very irregular,stipe usually thick and polished, pileus umbilicate,tough, yellowish white with brown marginal band,cilia short,fugacious P. variiporus Tubes regular;stipe slender,not polished; plants rather delicate, cilia variable in form and persistence Pileus opaque,not translucent,1-4 cm,cilia long,of uncertai duration;mostly cespitose P. Tricholoma Pileus very thin,more or less translucent,1-2 cm, cilia sho short, slender fucacious; plants not cespitose P. Cowellii Stipe wholly black or fuliginous, variously attached, usually darker than the pileus Pileus finely tomentose,drab colored,with reddish brown spots small,circular; tubes rounded,minute. P. maculosus Tubes 0.5-1 mm Stipe less than 1 cm,pileus normal P. Wrightii Stipe usually very long,1-15 cm;pileus sometimes aborted, resembling a Xylaria P. marasmioïdes Tubes much smaller, 4-10 to a mm. Pileus 12-25 cm in diam,white or pallid P. Underwoodii Pileus half this size Surface light colored,isabelline to pale umbrinus stipe lateral P. subelegans Surface bright bay to almost black Stipe central,pileus proliferous at times,surface glabrous P. diabolicus Stipe horizontal,lateral or eccentric, 0.3-1 cm long pileus 2-10 cm in diam. Surface glabrous P. Blanchetianus Surface marked with rows of serrated black squamules P. scabellus Context bright yellow or red Hymenophore distinctly stipitate,context yellow Thaeolopsis VeraCrucis Hymenophore sessile or subsessile Pores yellow, context thin Pores red,context firm, tubes firm,regular,unchanging on drying; surface pelliculose Fycnoporus sanguineus Context brown Hymenophore stipitate,spores brown Hymenophore sessile Spores hyaline Context light brown,tough,not encrusted Surface glabrous or nearly so Pileus less than 1 cm thick Favolus Surface marked with white and light brown zones F. tenuis Surface variegated with dark brown and purple zones F. [illegible]variegatus Pileus 2-3 cm thick, surface azonate F. leprosus Pileus poroid Hapalopilus licnoides Surface distinctly hairy Coriolopsis Tubes small and regular Coriolopsis