31 
Armillaria 
Pileus flat, 5 cm. with slight conical umbo, disc pyrami- 
dal, scaly, margin striate-sulcate, flesh thin, except on disc; 
gills white, ventricose, pink decurrent by a line, edges darker, 
close; stipe spongy, fleshy with fibrous cortex, cottony below; 
somewhat evanescent annulus, ending in bulb, 2 cm.# 5 mm. 
Mossy bank of roadside 
Specimens examined: 
Costa Rica, San Jose, Rancho Redondo, Alt. 2500 m. Dodge & Thomas 
5255 
