Russula parvula Burl. 1915

Russula parvula Burlingham, sp. nov
Pileus broadly convex, becoming plane, up to 4 cm. broad; surface very dark violet^ almost black in the center and black all over when young, becoming paler and brighter colored on the margin, viscid when wet, with separable pellicle, pruinose when young, then polished; margin scarcely striate: context fragile, tinged reddish under the pellicle, otherwise white, slowly acrid; lamellae white, yellowish in drying, dusted with the white spores, equal, simple, venose-connected, slightly adnate, close; stipe white, staining sordid-violaceous or dull-red where handled or bruised, spongy within, 2.5-4 cm. long, 1 cm. or less thick: spores white, globo.se, echinulate, 7 fxin diameter.
Type collected in needle soil in spruce woods at Stratton, Vertaont, August 23, 1910, Gertrude S. Burlingham 202-1910 (herb. Burlingham).
Distribution: Known only from the type locality.