Hohenbuehelia petaloides (Bull.) Schulzer 1866

Geopetalum petaloides (Bull.) Pat. Hym6n. Eur. 127. 1887
Agaricus petaloides Bull. Herb. Fr. ph 226. 1784. Agaricus anomalus Pers. Obs. Myc. 1: 55. 1796. Agaricus spathulatus Pers. Syn. Fung. 479. 1801. Pleurotus petaloides Qu^l. Champ. Jura Vosg. 226' 1872 Pleurotus geogenius Qu^l. Ench. Fung. 149. 1886 Geopetalum geogenium Pat. Hym6n. Eur. 127. 1887.
Pileus fleshy, erect, fan-shaped or semi-infundibuliform, often divided nearly to the base, at other times wavy or lobed on the margin, which is at first incurved, ^9 cm. broad; surface smooth, glabrous above, whitish-pruinose behind, avellaneous-isabelline to chestnut-brown, dry or viscid according to the weather: context white, with a farinaceous odor and taste; lameUae white, narrow, much crowded, sometimes forked behind, decurrent to the base of the stipe or nearly so: spores subovoid, smooth, hyaline, 7-8 X 3.5-4 m; cystidia fusoid, hyaline, 60-70 X 12-18 ju: stipe always lateral with a dorsal groove, short, white, pruinose, 1-3 cm. long, 5-15 mm. thick.
Type locality-France.
HABitAT: On the ground, usually among grass in the open and rarely in the woods, sometimes attached to buried wood.
Distribution: New York to Washington and south to Texas; also in Europe.