400 NORTH AMERICAN FLORA [VoLuME 9 
8. Clitocybe aperta (Peck) Sacc. Syll. Fung. 5: 164. 1887. 
Agaricus (Clitocybe) apertus Peck, Ann. Rep. N. ¥. State Mus. 30: 38. 1878. 
Pileus convex, becoming plane or centrally depressed, often irregular, gregarious or ces- 
pitose, 2.5 cm. broad; surface whitish, sometimes tinged with lilac and marked with one or 
two darker zones: context with farinaceous odor and disagreeable taste; lamellae crowded, 
narrow, adnate or slightly decurrent, whitish, often with a faint pinkish tint: spores 4-6 X 2-3 yp: 
stipe short, equal or attenuate downward, solid, whitish, 2.5-5 cm. long, 2 mm. thick. 
TypE LOCALITY: Maryland, Otsego County, New York. 
Hasrtat: Grassy ground by roadsides and in pastures. 
DISTRIBUTION: New York. 
9. Clitocybe leptoloma Peck, Bull. N. Y. State Mus. 157: 68. 1912. 
Agaricus (Clitocybe) leptolomus Peck, Ann. Rep. N. Y. State Mus. 32: 26. 1880. 
Pileus thin, umbilicate, gregarious or cespitose, 3—5 cm. broad; surface glabrous, hygro- 
phanous, creamy-white when moist, white when dry, very thin on the margin: lamellae thin, 
narrow, crowded, some of them forked, decurrent, white: spores minute, globose or subglobose, 
3-4 pw: stipe equal, glabrous, generally curved or flexuous, stuffed, concolorous, with a white 
villosity at the base, 3-5 cm. long, 2-4 mm. thick. 
Type Locauity: Indian Lake, Adirondack Mountains, New York. 
Hasirat: Prostrate trunks of trees. 
DistRiBpution: Adirondack Mountains, New York. 
10. Clitocybe Robinsoniae Murrill, sp. nov. 
Pileus broadly depressed at maturity, thin, solitary, 3 cm. broad; surface smooth, glabrous, 
creamy-white, shining, margin entire, concolorous, sharply inflexed on drying: context thin, 
white, the taste nutty and pleasant; lamellae adnate or short-decurrent, narrow, much crowded, 
inserted, white: spores ovoid, smooth, hyaline, 5-7  2-3.5 u: stipe slightly tapering upward, 
smooth, glabrous, white, shining, longitudinally grooved, 2.5 cm. long, 3 mm. thick. 
Type collected on rotten wood under spruce at Yellowstone Lake, Wyoming, 2,300 m., August 9, 
1912, Winifred J. Robinson 36 (herb. N. Y. Bot. Gard.). 
DISTRIBUTION: Known only from the type locality. 
11. Clitocybe fuscipes Peck, Ann. Rep. N. Y. State Mus. 44: 129 (17). 
1891. 
Pileus thin, broadly convex or plane, umbilicate, 8-16 mm. broad; surface glabrous, 
whitish and striatulate when moist, pure-white when dry: context with a farinaceous odor and 
taste; lamellae nearly plane, subdistant, adnate or slightly decurrent, white: spores globose, 
5-6 w: stipe equal, ho'low, glabrous or slightly mealy at the apex, brown when moist, paler when 
dry, 2.5 cm. long, about 2 mm. thick. 
TYPE LOcALtty: Carrollton, New York. 
Hasirat: Under pine trees. 
DistTRrsution: Known only from the type locality. 
12. Clitocybe albidula Peck, Ann. Rep. N. Y. State Mus. 46: 103 
(23). 1893. 
Clitocybe centralis Peck, Ann. Rep. N. Y. State Mus. 53: 841. 1900. 
Pileus convex or nearly plane, becoming umbilicate or centrally depressed, gregarious, 
1-3 cm. broad; surface glabrous, whitish tinged with brown wholly or at the center only, 
whitish when dry; margin faintly striatulate when moist: context whitish, the odor and taste 
farinaceous; lamellae thin, crowded, adnate or slightly decurrent, whitish: spores minute, 
ellipsoid, 5-6 X 2.5-3 4: stipe short, equal, glabrous or slightly pruinose, stuffed or hollow, 
concolorous, 2-4 cm. long, 2-4 mm. thick, 
TYPE LOCALITY: Delmar, New Vork. 
HasrraT: In pine or mixed woods. 
DISTRIBUTION: Northern New York. 
ILLUSTRATIONS: Ann. Rep. N. Y. State Mus. 53: pl. C, f. 16-20. 
