Psilocybe Psathyra Pileus hygrophanous, 2-3 cm, varying from buff to chalky white on the dry portion over the disc, fuscous on moist margins expanded with margins sometimes upturned slightly, splitting radial- ly, broadly umbonate; fleshthin except on disc; gills adnate, close thick, stipe cartilaginous, hollow, dark buffy brown outside white within 2 cm x 3mm silky whitish, spores purple brown On dead fence posts Specimens examined Cartago: Tres Rios Dodge, Dodge, & Thomas 4723