Pleurotus semitectum group. Pileus dimidiate to flabellate up to 4 x 6 cm diam. Surface slightly spongy tomentose, margin thick, smooth, pinkish buff with suggestion of avellaneous; gills close decurrent, medium width white drying cream color (in one pileus evidently from same mycelium not decurrent then) stipe 5 x 50-5 mm tapering downward cottony white). On standing tree strangled by Ficus sp. in jungle about 6 m above the ground, in jungle above H. Quebrada Azul northwest of Tilaran Specimen examined Costa Rica: Guanacaste: Hacienda Quebrada Azul n.w. of Tilaran Dodge & Thomas 6627