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Russula subgraminicolor Murrill
Lloydia 6 (3): 218. 1943.

Original diagnosis

Pileo convexo-depresso, 6–8 cm. lato, striato, sapore grato; sporis stramineis, globosis, echinulatis, 5–7µ; stipite albo, 5–6×1.5–2 cm.

Pileus convex to deeply depressed, scattered, 6–8 cm. broad; surface glabrous, slightly viscid, peeling readily, striate to the disk in age, uniformly grass-green without variation; context rather thin, white, unchanging, odorless, mild; lamellae adnate, plane, medium broad, medium distant, equal, many forked at the base, entire, white; spores globose or subglobose, roughly echinulate, uninucleate, pale-stramineous in mass, 5–7µ; stipe subequal, lightly striate, glabrous, milk-white, about 5–6×1.5–2 cm.

Type collected by West and Murrill under oaks in Prairie Creek Hammock, just south of Newnan's Lake, Florida, July 27, 1938 (F 17942). Many specimens were collected and the color was always the same. The spores are paler and smaller than those of R. graminicolor Quél., while too yellow to match those of R. crustosa Peck.


Holotypus: 17942 (F)
North America: United States: Florida: Prairie Creek Hammock, just south of Newnan's Lake
Under oaks

Published type studies: Hesler (1960).




SEM photos