Naucoria caespitosa Murrill 1917

Naucoria caespitosa Murrill, sp. nov
Pileus rather thin, convex to plane, slightly umbonate at times, cespitose or gregarious, about 2 cm. broad; surface subviscid, smooth, glabrous, uniformly cream-colored or pale-isabelline, margin entire, not striate, involute when young, decorated with the remains of a slight, evanescent, fibrillose veil; lamellae adnexed or sinuate, narrow, crowded, yellowish to darkmelleous, entire and concolorous on the edges; spores ellipsoid, smooth, melleous under the microscope, 1-2-guttulate, 7-8.5 X 6 m; stipe short, cylindric, equal, cartilaginous, creamcolored, slightly darker at the base, fibrillose from the remains of the veil, 1-1.5 cm. long, about 2 mm. thick.
Type collected on a dead, coniferous, moss-covered log in woods near Seattle, Washington, October 20-November 1, 1911, W. A. Murrill 691 (herb. N. Y. Bot. Gard.).
Habitat: On coniferous logs.
Distribution: Vicinity of Seattle, Washington.