Agrocybe acericola (Peck) Singer 1950

Pholiota acericola (Peck) Sacc. Fung. 5: 759. 1887
Agaricus acericola Peck, Bull. Buffalo Soc. Nkt. Sci. 1: 50, 1873,
Pileus 2.5-7.5 cm. broad, broadly convex or nearly plane, rarely somewhat umbonate, cream-buff to clay-colored or buckthorn-brown when young and moist, buff-yellow or Naplesyellow when old, frequently somewhat darker at the center than at the margm, not strongly hygrophanous but changing color from young to old condition, clay-colored to tawny in herbarium specimens, glabrous, rugosely reticulated or corrugated, even at the margin and sometimes upturned; context thin, white, with a farinaceous taste and odor; lamellae sinuate-adnate or with a small decurrent tooth, medium-close, 2.5-7 mm. broad, grayish becoming brownishferruginous or at some stages with a purplish cast, the edges floccose-crenulate ; veil forming a large persistent, or rarely evanescent, membranous, superior, or in some instances nearly median, deflexed, white annulus, sometimes of a rich-brown color and striate on the upper side; stipe central, equal or thickened at the base, fibrillose-striate to nearly glabrous, white or whitish, stuffed or hollow, typically with more or less of a white tomentum and strings of mycelium at the base, 6-1 1 cm. long, 4-15 mm. thick; spores ovoid or ovoid-eUiptic, with a tnmcate apex, smooth, dull-brown, 8.5-10.5 X 5-6 ju; cystidia present but not abundant, flask-shaped or broadly fusoid but only the tips projecting so not conspicuous, the tips rarely twoto threeforked, 15-20 fi in diameter below.
Type i^ocality: North Elba, New York.
Habitat; Mossy rotted trunks of deciduous trees, perhaps also on coniferous wood; rarely on the ground around rotting logs or on leaf -mold.
Distribution: Connecticut to North Carolina and Alabama, and westward to Ohio, Colorado, and Califomia.