Hymenium white or yellowish Margin of pileus entire or lobed, not lacerate Pileus less than 1 mm flexible C.haedinus Pileus thicker White throughout even in dried material C. substipitatus White or yellowish rarely tinged bay behind tubes yellowish or tawny Context fibrous, 1 mm, tubes 7-8 per mm C. hondurensis Context fleshy tough 1-3 mm; tubes 4-5 per mm pileus brittle when dry C. ochrotinctellus Isabelline fulvous, hymenium fulvous; sur- smooth C. leiodermus Margin lacerate tubes 4-6 per mm C. membranaceus Surface of pileus clothed entirely with a conspicuous hairy covering Hymenium wholly or partly fuscous; tubes broad and shallow Latericious fulvous except near margin C.fulvoumbrinus White to cinereous or isabelline, tubes regular C. pinsitus Hymenium not fuscous white or slightly discolored More or less purple, marked with a few concentric lines C. scutatus White to cinereous with numerous concentric lines C. pavonius Tubes soon breaking up into irpiciform teeth Pileus 10-20 cm, surface fibrillose tomentose C.maximus Pileus smaller, 1 cm or less, very thin Pileus flabelliform, glabrous C. sobrius Pileus subcampanulate, pendulaus, erumpent, finely tomentose C. cyphelloides Hymenophore stipitate, tough, stipe simple, epixylous Tubes large, hexagonal, radially elongate Favolus Pileus white or n arly so Not distinctly tomentose, flabelliform, stipe usually distinct Stipe 5-10 mm in diam Tubes 1 mmiin length Tubes 3-6 mm in length Stipe 1-3 mm diam Pileus 3 cm or less in diam Tubes flesh colored 2 mm wide Tubes pallid, 1 mm wide Pileus 4 cm or more in diam Margin entire, often pellucid Margin ciliate or denticulate Surface minutely tessellate Surface not tessellate F.princeps F. pseudoprinceps F. Maxoni F. floridana F. daedalea F. tessulatula F. fragilis