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Literature:
 
Page number:312 
Description type:Original description 
Description:Russula obscuriformis Murrill, Lloydia 7(4): 312. 1945. Figs 1-6
Original description and typification - Pileus convex to slightly depressed, solitary, 8 cm broad; surface dry, smooth, at length glabrous, dark-roseous with bay center, darker on drying, margin even or slightly striate, entire, peeling readily; context thin, white, discolored on drying, odorless, mild; lamellae adnate, mostly equal, few forked, broad, medium distant, entire, white; spores subglobose to broadly ellipsoid, finely tuberculate, stramineous in mass, about 8 µm long; cystidia none; stipe equal, smooth, glabrous, white, 5 x 2 cm.
Type collected by W. A. Murrill under an oak at LaCrosse, Alachua Co., Fla., July 13, 1938 (F 15536). Suggesting R. obscura Romell but differing in color and spore color. The gills in dried specimens are distinctly gray. [Holotype at FLAS sub nr. F15536].
 
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