20 NORTH AMERICAN FLORA [Volume 10 



soid, smooth, hyaline, 5-7X2-3 fi; stipe short and thick, cylindric above, bulbous at the base, 

 smooth, glabrous, dull-white, spongy within, brittle, 3-5 cm. long, 1-2 cm. thick. 



Type collected in sandy soil in mixed woods near Auburn, Alabama, January 1, 1901, Mrs. F. S. 

 Earle. 



Habitat: In sandy soil in oak woods or mixed woods. 

 Distribution: Alabama. 



64. Melanoleuca phaeopodia (Bull. & Vent.) Murrill. 



Agartcus phaeopodius Bull. & Vent. Champ. Fr. 1: 622. 1809. 

 Collybia phaeopodia Quel. Ench. Fung. 28. 1886. 



Pileus depressed, gregarious, 5-9 cm. broad; surface dry, glabrous, fumoso-avellaneous, 

 margin often irregular; context white, brittle, having a sweet, nutty taste, but no odor; 

 lamellae sinuate, narrow, crowded, uneven, brittle, white to pallid; spores ellipsoid, smooth, 

 hyaline, 7-9X5-6.5 n; stipe subconcolorous, dry, glabrous, fleshy, stuffed or hollow, larger at 

 the base, 4 cm. long, 0.75-2 cm. thick. 



Type locality: France. 



Habitat: On the ground among weeds or in woods. 

 Distribution: Northeastern United States; also in Europe. 

 Illustration: Bull. Herb. Fr. pi. 532, f. 2. 



65. Melanoleuca Volkertii Murrill, sp. nov. 



Pileus convex to plane, at length depressed, somewhat irregular, thin, fragile, gregarious, 

 reaching 7 cm. broad; surface smooth, glabrous, dry, avellaneous at the center, fading out to 

 nearly white at the margin, the cuticle sometimes splitting radially; margin thin, entire or 

 lobed, at first incurved, at length expanded; lamellae sinuate, rather crowded, of medium 

 breadth, fragile, whitish, becoming subfulvous on drying; spores ellipsoid, smooth, hyaline, 

 4r-6X3-4/t; stipe usually short and thick, equal, smooth, glabrous, pallid or pale-avellaneous, 

 spongy- stuffed, 3-4 cm. long, 1—2.5 cm. thick. 



Type collected on the ground in woods east of the New York Botanical Garden, New York 

 City, October 8, 1911, W. A. Murrill & E. C. Volkert. 

 Distribution: Known only from the type locality. 



66. Melanoleuca piperata (Peck) Murrill. 



Tricholoma piper atum Peck, Bull. Torrey Club 26: 63. 1899. 



Pileus rather thin, firm, dry, convex, obtuse or subumbonate, 4-7 cm. broad; surface 

 virgate with innate brownish fibrils, varying in color from grayish-brown to blackish-brown, 

 sometimes with greenish or yellowish tints, often a little darker in the center; context 

 white or whitish, taste acrid; lamellae broad, close, rounded behind, adnexed, whitish or 

 yellowish; spores ellipsoid, 6-7X5 p.; stipe generally short, equal, solid, silky, slightly mealy or 

 pruinose at the top, white or slightly tinged with yellow, 5-7 cm. long, 6-12 mm. thick. 



Type locality: Massachusetts. 



Habitat: On the ground in woods. 



Distribution: Massachusetts, New York, and Pennsylvania. 



67. Melanoleuca semivestita (Peck) Murrill. 



Tricholoma semivestitum Peck, Bull. Torrey Club 22: 485. 1895. 



Pileus thin, expanded, the center depressed or subumbilicate, 12-24 mm. broad; surface 

 dry, blackish-brown, glabrous, margin deflexed or involute ; lamellae emarginate, close, whitish 

 tinged with blue, edges often dentate; spores broadly ellipsoid or subglobose, uninucleate, 4-5 

 X4/*; stipe short, slightly thickened at the base, brown, tomentose below, solid, 1.5-2.5 cm. 

 long, 4-6 mm. thick. 



Type IvOCAUity: Rooks County, Kansas. 



Habitat: On old grass roots in a sandy prairie pasture. 



Distribution: Kansas. 



68. Melanoleuca praecox Murrill, sp. nov. 



Pileus becoming plane and at length depressed, solitary, 4 cm. broad; surface dry, avel- 

 laneous, shining, minutely imbricate, margin irregular or somewhat lobed; context whitish, 

 mild, pleasant to the taste; lamellae sinuate, broad, nearly plane, rather crowded, several 



