326 



Mycologia 



Lactaria spp. One resembling L. varia, but with broad, distant gills. Another 

 near L. cinerea. Very uniform in appearance and size. In dry, grassy 

 places under white oaks in Preston's Woods. 



Marasmius glabellus. 



Marasmius oreades. Abundant. 



Marasmius rotula. 



Marasmius spp. Several which I have not determined. 



Melanoleuca alboflavida. Rather abundant in a semi-shaded spot in oak 

 woods, growing in leaf-mold. The specimens are rather above the average 

 size of the species. 



Melanoleuca melaleuca. Small, pallid plants growing among grass on an ex- 

 posed' lawn. 



Omphalopsis campanella. On an oak stump. Frequeat about Blacksburg on 



both deciduous and coniferous wood. Very abundant at Mountain Lake. 

 Panaeolus campanulatus , 

 Panaeolus retirugis. 

 Panaeolus seiniglobattis. 

 Panellus stypicus. 



Pholiota J ohnsoniana. Large plants with a ring that falls away and very 



small plants, growing gregariously, with the ring breaking up as in- H. ap- 



pendiculatum. ■ Size very different but the same plant. 

 Pleuropus albogriseus. Gregarious or cespitose in grassy woods. Spores 



angular, uniguttulate, 12 X 7 Previously known from New York and 



Massachusetts. 

 Pleuropus obesus. 

 Pleurotus ostreatus. 

 Pluteus cervinus. Frequent. 



Pluteus praerugosus sp. nov. 



Pileus convex to nearly plane, with a slight umbo in early stages, solitary, 

 3—4 cm. broad ; surface glabrous, very rugose, dry, fuliginous, darker at the 

 center, long-striate on the margin ; lamellae free, tapering behind, rather 

 crowded, entire on the edges, white until colored by the spores, which are 

 perfectly globose, smooth, with very large nucleus, almost hyaline under 

 the microscope, pinkish in mass, 5 fi in diameter ; stipe slender, nearly 

 equal, pallid, glabrous, 3-4 cm. long, not at all twisted. 



Type collected on a dead white oak log in Preston's Woods, Blacksburg, 

 Virginia, July 16-31, 1920, W. A. Murrill. 



Prunulus sp. Growing in clusters on a dead white oak log. 

 Psilocybe foenesecii. Common. 

 Russula albida. Small and rare. 



Russula compacta. Pale-fulvous above with a chestnut tint, milk-white below, 



staining when touched ; flesh sweet. 

 Russula delica. 

 Russula emetica. Common. 

 Russula foetens. Abundant. 

 Russula furcata. Abundant. 



Russula nigricans. Found twice, and in both cases soon blackening. 



Russula virescens. Abundant. Eaten by box tortoise, which was just leaving 

 the plants, the ground being covered with chips as usual. Evidently he 

 turned to this species when Vaginata plumbea was exhausted. 



