?Naucoria semiorbicularis 
form mentioned "by Fr. from Juan Vinas, Oersted Ic.17 
F ileus expanded* 4.5 cm. diam. , thin,f ibrillose, sub- 
ygrophanous * warm buff to Dresden brown, margin tbin, splitting, 
ot striate; gills brown ^medium, narrow; stipe 6-em. , slender , 
cm. # 3.5 mm. e^ual warm buff above to chocalate under^lioc- 
pose, fibrous, reticulations; plants caespitose. 
On mossy stump. 
Specimens examined: 
Costa Rica, Gartago, Finca Coliblanco, above Sta . Theresa de 
Capelladas „ Alt. 1980m. Dodge 465^ 
