Psathyra Pileus plane, 1.8mm, coarsely fibrillose, fraying out cottony tomentose over deeply sulcate, striate margin caused by splitting over gills, livid brown disc shading to pale ecreu drab at margin Gills between benzo brown and fuscous, narrow, close adnate Stipe 3cm, x 1-3mm., tapering upward, pinkish budd, cartilaginous, slightly pruinose Costa Rica, Limón prov., Castilla farm, 20m, 7-28-36 Dodge & Goerger