202 NORTH AMERICAN FLORA [VoLumME 10 
sometimes with a dull-greenish tint, margin at first involute; context pallid; lamellae rather 
crowded, adnate or sometimes slightly rounded behind, pale-ochraceous, becoming brownish- 
ochraceous, whitish and minutely crenulate or eroded on the edges; spores subochraceous, 
ellipsoid, 7-8 X 4-5 4; stipe equal or slightly tapering upward, becoming hollow with age, 
silky-fibrillose, slightly floccose or furfuraceous at the apex when young from the pure-white, 
slight, evanescent veil, pallid, with a soft white tomentum at the base, 2-4 cm. long, 4-6 mm. 
thick. 
TPE LOCALITY: Rockville, Indiana. 
Hasitrat: On decaying wood, bark, or branches of deciduous trees, commonly basswood, 
Tilia americana, or even on dead herbaceous stems. 
DISTRIBUTION: Known only from the type locality. 
29. Gymnopilus unicolor Murrill, sp. nov. 
Pileus convex to subexpanded, obtuse, gregarious, not cespitose, 3-5 cm. broad; surface 
glabrous, hygrophanous, not viscid, dark-umbrinous, becoming dull-brownish-ocbraceous 
when dry, margin not striate, always decurved; lamellae heterophyllous, rather long-decurrent, 
subdistant, broad, arcuate to subplane, dull-yellow, becoming dull-cinnamon; spores ellipsoid, 
dull-cinnamon, 10 X 6 ny; stipe tough, cylindric, subglabrous, subconcolorous, solid but stuffed 
with fibers within, 4-6 cm. long, 4-6 mm. thick; veil brownish, soon evanescent or subannulate. 
Type collected on a wet, very rotten log in a swamp north of Auburn, Alabama, January 6, 
1900, Esther S. Earle (herb. N. Y. Bot. Gard.). 
DistRIBUTION: Known only from the type locality. 
30. Gymnopilus piceinus Murrill, sp. nov. 
Pileus convex to expanded, obtuse, scattered or cespitose, 3-5 cm. broad; surface very 
viscid, glabrous, bright-yellow, darker and reddish on the disk, margin not striate; context 
greenish-yellow, with nearly mild taste; lamellae heterophyllus, sinuate-decurrent, sub- 
crowded, rather broad, plane, yellow to pale-fuscous; spores ellipsoid, pale-fuscous, 7-8 X 
4-5 w; stipe cylindric, somewhat fibrillose, concolorous but darker at the base, stuffed, be- 
coming hollow, 3-5 cm. long, 4-6 mm. thick. 
Type collected on a much decayed spruce tree at Bar Harbor, Maine, August, 1901, V. S. 
White 129 (herb. N. Y. Bot. Gard.). 
DISTRIBUTION: Known only from the type locality. 
31. Gymnopilus alnicola (Fries) Murrill. 
Agaricus alnicola Fries, Syst. Myc. 1: 250. 1821. 
Flammula alnicola Quél. Champ. Jura Vosg. 233. 1872. 
Sd sulphurea Peck, Bull. N. Y. State Mus. 157: 26. 1912. Not F. sulphurea Massee, 
Pileus fleshy, subconiec or convex, becoming broadly convex, cespitose or densely gre- 
garious, 3-6 cm. broad; surface glabrous, viscid, hygrophanous, yellow, at length becoming 
rust-colored, sometimes with whitish, silky, fibrillose scales on the margin; context white when 
dry, the taste bitter, disagreeable; lamellae thin, broad, crowded, arcuate, adnate, crenulate 
on the edges, pallid, becoming dark-ferruginous; spores ellipsoid, dark-ferruginous, 8-11 X 
5-6 »; stipe equal, curved or flexuous, radicate, fibrillose or squamulose below, stuffed or 
hollow, pale-yellow and naked at the apex, ferruginous toward the base, 3-8 cm. long, 4-10 
mm. thick; veil manifest, fibrillose or arachnoid. 
Type LocALIty: Europe. 
Hasirat: At the base of birch, maple, apple, and other frondose trees. 
DisrRIBUTION: New England and New York; also in Europe. 
IuLustraTions: Ann. Rep. N. Y. State Mus. 54: pl. G, f. 8-14; Bull. N. VY. State Mus. 157: 
pl. VII, f. 7-11; Cooke, Brit. Fungi pl. 443 (480); Gill. Ch: . Fr. pl. 366 (282); Ri a ‘: 
Deutschl. pl. 58, f. 5. . ee near ae ace 
32. Gymnopilus pulchrifolius (Peck) Murrill. 
Flammula pulchrifolia Peck, Bull. N. Y. State Mus. 122: 21. 1908. 
Pileus fleshy but thin, hemispheric, becoming convex, 2.5~5 em. broad; surface slightly 
viscid when moist, hygrophanous, fibrillose or, in large specimens, squamulose at the center 
