Naucoria washingtonensis Murrill 1917

Naucoria washingtonensis Murrill, sp. nov
^ Pileus convex to plane, not umbonate, sometimes slightly depressed, cespitose or gregarious, 2-3 cm. broad; surface dry or moist, minutely tomentose to subglabrous, uniformly isabelline, margin entire to somewhat irregular or eroded, concolorous, not striate; lamellae adnate or somewhat sinuate, plane, narrow, crowded, dirty-isabelline, pallid and slightly serrulate on the edges; spores ellipsoid, tapering at both ends, finely asperulate, melleous under the microscope, 8.5-10.5 X 7 m; stipe cylindric, equal, very straight, smooth, glabrous, isabelline, darker below, cartilaginous, hollow, 6-8 cm. long, 2-3 mm. thick.
Type collected in humus in a peat bog at Seattle, Washington, October 20-November 1, 1911, W. A. Murrill 235 (herb. N. Y. Bot. Gard.).
Habitat: On the ground in low woods, rarely in peat bogs. Distribution: Very common in the vicinity of Seattle, Washington.