Pleurotus Pileus variable, up to 8cm., dimidiate, expanded, minutely fibrilloose, Color 19"(between drab and grayish olive), slightly hygróphanous; margin somewhat lighter, thin, inrolled Gills decurrent to stipelike lateral attachment, close, ventricose, broad on stipe, very narrow at margin, white Stipe lateral, nearly covered by decurrent gills, white See water color for habit (color of pileus not quite accurate) On decaying Erythrina sp., roadside above Tres Ríos. Costa Rica, Cartago prov., slopes of C. Carpintera, 1400m. 9-1-36 Dodge & Goerger