Russula 
Pileus 1.7 mm. diameter , viscid, disc depressed, buckthorn- 
bra wn, margin conspicuously sulcate, striate to dl®, warm- burg 
gills close, narrow, cream- color; stipe long 25^4 mm.,wuite, 
fibrillose, lacunose,. pellicle separable , taste slowly very acrid. 
Mossy bank.. 
Specimens examined: 
Costa Rica, Ran Jose, Rancho Redondo, Alt.2p-2400 m., Dodge & 
Thomas 5145 
