Psathyrella 
3 '* 
Pileus cairvpanulate 2.5 cm diam, 2 cm tall; deeply striate, 
slightly yellower than avellaneous; gills adnate broad, medium d is- 
tance, black with white edges; stix^e slender, fragile, smooth, 
concolor or lighter, more than 15 cm x 1-2 mm 
Decaying leaves in jungle 
Costa Rica: Puntarenas Osa, Estero Sandal o 10 m, Dodge 7694,7756; 
?Puerto Jimenea, Dodge 7689 
