Pileus hygrophanous , 4-6 can, convex, deeply umbilicate, margin 
striate to disc, white to cream buff, flesh thin; gills short decurren 
broad, subdistant, white; stipe varying from nearly lateral (then broa 
marginate behind) to central tapering downward, smooth, hygrophanous , 
white, fleshy, varying from 10 x 5 mm to 20 x 6-4 mm, of tentomentose 
at base, often cespitose. 
Rotting log in potrero.l 
Edible, very delicious flavor. 
Specimens examined: 
Costa Rica: Heredia, Cerrox Central de Zurqui 1700 m, Dodge Valerio 
& Thomas 6131. 
