220 NORTH AMERICAN FLORA [Vo.uME 10 
very pale melleous under the microscope, smooth, 9-10 X 6 4; stipe equal, glabrous, shining, 
minutely floccose above, white, solid, 3-4 em. long, 3-5 mm. thick. 
Type collected in soil under beech trees in the New York Botanical Garden, November 12, 1901, 
F.S. Earle 51 (herb. N. Y. Bot. Gard.). 
DISTRIBUTION: Known only from the type locality. 
17. Hebeloma appendiculatum Murrill, sp. nov. 
Pileus convex, not fully expanding, slightly gibbous, rather thick and fleshy, cespitose, 
5 em. broad; surface viscid, silky and also finely imbricate-squamulose, rosy-isabelline, creme- 
ous on the disk, margin deflexed, concolorous, appendiculate with triangular fragments of the 
slight, evanescent veil; context white, thick at the center, with nutty flavor; lamellae sinuate, 
broad behind and tapering in front, quite narrow, arcuate, very much crowded, pale-cream- 
colored, not darkening on drying, the edges pallid and distinctly crenate or dentate; spores 
ellipsoid, smooth, pale-clay-colored in mass, pale-melleous under the microscope, 6-7 K 3-4 u; 
stipe equal, spongy-stuffed with creamy-white pith, glabrous at the apex, white above, con- 
colorous below, revolute-squamulose, 4 cm. long, 1 cm. thick. 
Type collected on the ground at the base of a sugar maple tree on a lawn in the New York 
Botanical Garden, September 4, 1912, W. A. Murrill (herb. N. Y. Bot. Gard.). 
DISTRIBUTION: Known only from the type locality. 
a 
18. Hebeloma Tottenii Murrill, sp. nov. 
Pileus convex to plane, usually becoming depressed, often slightly umbonate, gregarious 
or cespitose, 2.5-4 em. broad; surface smooth, glabrous, shining, reddish-tawny at the center 
and shading to whitish-buff on the margin; context thin, pale-buff, without characteristic 
taste or odor; lamellae sinuate, broad, not crowded, melleous to fulvous or brown; spores ellip- 
soid, smooth, fulvous in mass, 6.5-8.5 X 4-5 y;.stipe slightly tapering downward, smooth, 
hollow, whitish-buff above, reddish-tawny below, sometimes decorated near the base with 
long, coarse, white hairs, 3-4 cm. long, 2-3 mm. thick. 
Type collected on the ground under pines near Chapel Hill, North Carolina, December 10, 
1914, H. R. Totten 1509 (herb. N. Y. Bot. Gard.). 
DIsTRIBUTION: Known only from the type locality. 
19. Hebeloma gregarium Peck, Ann. Rep. N. Y. State Mus. 
49: 32 (18). 1897. 
Pileus thin, hemispheric or convex, obtuse or rarely with a small, inconspicuous umbo, 
gregarious, 2.5-3.5 cm. broad; surface slightly viscid when moist, glabrous or slightly silky 
on the margin, pale-ochraceous, sometimes with a reddish or tawny tint at the center; con- 
text whitish; lamellae thin, crowded, adnate, whitish, becoming subcinnamon-colored; spores 
ellipsoid, 10-11 X 5-6 w; stipe slender, stuffed or hollow, fibrillose, whitish, slightly mealy or 
pruinose at the apex, 3-5 cm. long, 2-4 mm. thick. 
Type LocaLtity: Delmar, New York. 
Hasitrar: On sandy soil in heathy places. 
DisTRIBUTION: New York and Michigan. 
20. Hebeloma mesophaeum (Pers.) Quél. Champ. Jura Vosg. 95. 
1872. 
Agaricus fastibilis mesophaeus Pers. Myc. Eur. 3: 173. 1828. 
Agaricus mesophaeus Fries, Epicr. Myc. 179. 1838. 
Piles somewhat fleshy, conic-convex to plane, 3-4 cm. broad; surface viscid, isabelline, 
bay or umbrinous on the disk, margin even, almost naked; lamellae emarginate, crowded, thin, 
entire; spores 8-10 X 5-6 yw; stipe tough, slender, equal, fibrillose, pruinose at the apex, whitish, 
becoming rusty, subfistulose, 5—7 cm. long, 4 mm. thick; veil fugacious. 
Type Locality: Europe. 
Hapirat: On the ground in woods or groves. 
DisTRIBuTION: Canada to Alabama in eastern North America; also in Europe. 
InLustRATIONS: Cooke, Brit. Fungi 1. 411 (452), 412 Ge) 
Exsiccati: Barth. Fungi Columb. 1930; Ellis & Ev. N. Am . Fungi 1908 (as H. versipelle). 
