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Nomenclature

Russula ventricosipes Peck
Bull. Torrey Bot. Club [BPH] 29: 70. 1902.

Original diagnosis

Russula ventricosipes

Pileus thin, broadly convex, nearly plane or sligtly depressed in the center, glabrous, varying in color from tawny yellow to pale alutaceous; flesh white; lamellae thin, narrow, close, slightly sinuate, adnate, white or whitish, becoming discolored in drying; stem stout, firm, ventricose, solid, or somewhat spongy within, subglabrous, whitish above, reddish toward the pointed base; spores broadly elliptic or subglobose, 6–8 µ long, 6 µ broad.
Pileus 5–7 cm. broad; stem 5–7 cm. long, about 2.5 cm. thick in the middle, more narrow toward each end.
Sandy soil under or near pine trees. South Yarmouth, Mass. October. S. Davis.
A singular species resembling in some respects Tricholoma compactum, but apparently a Russula. Remarkable for the thin, slightly sinuate lamellae and the stout ventricose stem which seems out of proportion to the small thin pileus.

Typification

Holotypus: f3345 (NYS)
North America: United States: Massachusetts: South Yarmouth
Sandy soil under or near pine trees

Published type studies: Hesler (1960)

Description

Photographs

Microscopy

SEM photos

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