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Nomenclature Russula gracilis Burl. (basionym) Original diagnosis 65. Russula gracilis Burlingham, sp. nov. Pileus convex, becoming plane or at length slightly depressed in the center, up to 6 cm. broad; surface pale-lilac-rose to salmon-lilac, much darker in the center, sometimes gray-green or stone-color between the center and the margin, fading, viscid when wet, with separable pellicle, glabrous; margin striate: context white, acrid, without special odor; lamellae white, then cream-colored, equal, entire, rounded at the outer ends, narrow behind, appearing slightly decurrent when mature, rather broad, close, pruinose; stipe white, rarely tinged with pink, tapering upward, spongy within, 5 cm. long, 0.8 to 2 cm. thick: spores pitchpin, globose to elliptic, echinulate, with vacuole, 7 × 7–9 µ. Type collected among weeds in maple, spruce, and willow woods bordering a stream at Stratton, Vermont, August, 1910, Gertrude S. Burlingham 212-1910 (herb. Burlingham; extype herb. N. Y. Bot. Gard.). Typification Holotypus: Herb. Burlingham: Gertrude S. Burlingham 212-1910 |
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