Omphalia Pileus expanded, deeply umbilicate, 1.5 cm, hygrophanous, disc more or less velvety, margin striate over gills, smooth, between mummy brown and Saccardo's olive; gills white decurrent, subdistant, narrow stipe cartilaginous white fragile semipellucid, 1.5 cm x 2.5-2 mm taper ing downward Puntarenas, Osa, R. Sándalo, 2 m. Dodge & Goerger 8-24-36