222 NORTH AMERICAN FLORA (VoLuME 10 
adnexed, grayish-white, becoming brownish-cinnamon; spores subellipsoid, uninucleate, 
10-12 X 6-8 y; stipe equal or tapering upward, hollow, silky, white, 5-7 cm. long, 4-8 mm. 
thick. 
TYPE LOCALITY: Kasoag, New York. 
Haszitat: On mossy ground in swampy woods. 
DistRiBUTION: Known only from the type locality. 
26. Hebeloma illicitum (Peck) Sacc. Syll. Fung. 5: 806. 1887. 
Agaricus illicitus Peck, Ann. Rep. N. Y. State Mus. 24: 68. 1872. 
Pileus fleshy, firm, convex or expanded, obtuse, gregarious or cespitose, 2.5-3.5 cm. 
broad; surface glabrous, hygrophanous, dark-brown when moist, paler when dry; lamellae 
crowded, broad, ventricose, adnexed, pale-brown; spores subellipsoid, 8-10 X 4-5 4; stipe 
equal, firm, hollow, concolorous but paler, striate at the apex, with a white mycelium at the 
base, 3.5—5 cm. long, 4 mm. thick. 
Typzr LocaLity: Greig, New York. 
Hagirat: On decaying logs and sticks in woods. 
DisTrrBuTion: New York, Ohio, and Missouri. 
In.ustrations: Ann. Rep. N. Y. State Mus. 24: 9l. 4, f. 1-5. 
27. Hebeloma sordidulum (Peck) Sacc. Syll. Fung. 5: 806. 1887. 
Agaricus sordidulus Peck, Ann. Rep. N. Y. State Mus. 38: 88. 1885. 
Pileus thin, firm, convex, 2.5-4 em. broad; surface viscid when moist, brownish-red or 
tawny-brown, paler on the margin; context white, with a radish-like odor; lamellae broad, 
crowded, rounded behind, slightly adnexed, pallid, becoming brownish-ochraceous; spores 
subellipsoid, 12-15 X 6-7 u; stipe short, equal, stuffed or hollow, slightly fibrillose, pruinose 
at the apex, white, about 2.5 cm. long, 3-4 mm. thick. 
Type LocaLity: Karner, New York. 
Hasrrat: In sandy soil in open bushy places. 
DIstRIBUTION: Known only from the type locality. 
28. Hebeloma discomorbidum Peck, Bull. N. Y. State Mus. 139: 75. 
1910. 
Agaricus discomorbidus Peck, Bull. Buffalo Soc. Nat. Sci. 1: 52. 1873, 
Naucoria discomorbida Sacc. 'Syil. Fung. 5: 842. 1887. 
Pileus thin, broadly convex or nearly plane, 2.5—-4 em. broad; surface glabrous, slightly 
viscid, reddish-brown or chestnut-colored, becoming brown at the center with age or on dry- 
ing; lamellae crowded, narrow, white or pallid, becoming brownish-ferruginous, white and 
crenulate on the edges; spores ellipsoid, uninucleate, 10 X 6 uw; stipe equal, stuffed or hollow, 
slightly mealy at the apex, white, 4-6 cm. long, 2-4 mm, thick. 
Type LocaLity: Croghan, New York. 
Haprrat: On the ground in woods. 
DISTRIBUTION: Northern New York and Massachusetts. 
29. Hebeloma luteum Murrill, sp. nov. 
Pileus large, thick, fleshy, convex to plane, solitary, 5-10 cm. broad; surface smooth, 
glabrous, viscid, luteous, margin ochraceous, entire, not striate; lamellae sinuate, ventricose, 
crowded, melleous to ferruginous; spores ellipsoid, smooth, subfulvous in mass, melleous under 
the microscope, 7-8.5 X 4-5 yw; stipe equal or tapering upward, smooth, dry, glabrous, pearly- 
white, 5-7 cm. long, 7-15 mm. thick; veil fibrillose, slight, evanescent. 
Type collected on the ground in woods at Stockbridge, Massachusetts, September 3, 4, 1911, 
W. A. Murrill & W. Gilman Thompson (herb. N. Y. Bot. Gard.). 
DISTRIBUTION: Massachusetts. 
30. Hebeloma flavum Clements, Bot. Surv. Neb. 4: 22. 1896. 
Inocybe flava Massee, Ann. Bot. 18: 497. 1904. 
Pileus fleshy, campanulate, 5—6 cm. broad; surface viscid, flavous, clothed with concentric, 
brown scales, margin incurved, appendiculate; lamellae subsinuate, subcrowded, drab; spores 
