Part 1, 1914] AGARICACBAE. 15 



39. Melanoleuca aromatica Murrill, sp. nov. 



Pileus spongy-fleshy, convex to expanded, obtuse or slightly umbonate, 4-10 cm. broad ; 

 surface uniformly buff with a grayish tint, minutely innately floccose-tomentose, moist, smooth,- 

 not hygrophanous, margin thin, concolorous, incurved; context white, moist, thin, taste 

 farinaceous, odor in dried specimens strongly aromatic and resembling that of Lactaria cam- 

 phorata; lamellae adnexed, slightly emarginate, plane or becoming subventricose, subcrowded, 

 of medium breadth, dingy- white, distinctly yellowish with age; spores ellipsoid^mooth, hyaline, 

 6-7X2.5-3.5 ju; stipe straight or curved at the base, cylindric above, much enlarged below, 

 pallid, fibrillose, pruinose at the apex, densely mycelioid-tomentose at the base, spongy-stuffed 

 to hollow, about 10 cm. long, 5-10 mm. thick above, 2-3 cm. thick below. 



Type collected on the ground among decaying leaves in woods in Cascade Glen, near Ann Arbor, 

 Michigan, October 11, 1907, C. H. Kaufman. 



Distribution: Known only fron the type locality. 



40. Melanoleuca venenata (Atk.) Murrill. 



Tricholoma venenatum Atk. Bot. Gaz. 46: 461. 1908. 



Pileus fleshy, convex to plane or subrepand, subumbonate, 4-7 cm. broad; surface moist, 

 not viscid, minutely fibrous-scaly, pale-buff to pale-clay-colored, the scales possessing the darker 

 color, under a lens some of them appearing nearly black, subtomentose in the center, margin 

 thin; context white with a dull-clay-colored tint and stains, poisonous, odor and taste mild; 

 lamellae adnexed, broadly sinuate, subdistant, whitish, thin, dull-clay-colored, especially when 

 bruised; spores ovoid to broadly ellipsoid, hyaline, smooth, 5-7X3.5-5 p; stipe subbulbous, 

 fibrous, striate, solid, sordid-white, becoming dull-clay-colored when handled, 4-8 cm. long, 

 1-1.5 cm. thick. 



Type locality: Detroit, Michigan. 



Habitat: Open grassy woods. 



Distribution: Known only from the type locality. 



Illustrations: Bot, Gaz. 46:/. 1, 2. 



41. Melanoleuca odorifera Murrill, sp. nov. 



Pileus thick, fleshy, convex, gregarious, 3-4 cm. broad; surface dry, smooth, innately 

 fibrillose, pale-boney-yellow,* fading with age, unicolorous, margin involute, concolorous; 

 context rather thick, concolorous, of mild flavor, odor strong, suggesting chlorin and sour 

 dough; lamellae plane, rather broad and thick, sinuate, subcrowded, colored like the pileus; 

 spores ellipsoid, smooth, hyaline, 8-9X5.5-6.5 n; stipe subequal, slightly larger below, con- 

 colorous, glabrous, whitish-mycelioid at the base, thick, hollow, 5-7 cm. long, 1 cm. thick. 



Type collected in humus in moist woods at Redding, Connecticut, August 26, 1902, F. S. Earle 



1234. 



Distribution: Known only from the type locality. 



42. Melanoleuca Naucoria Murrill. 



Agaricus {Tricholoma) fallax Peck, Bull. Buffalo Soc. Nat. Sci. 1: 44. 1873. Not A.fallax Lasch, 



1829. 



Pileus firm, convex or nearly plane, rarely centrally depressed, 0.5-1.5 cm. broad; surface 

 moist in wet weather, glabrous, dull-saffron, subochraceous, or reddish-yellow; context yellowish 

 when dry; lamellae narrow, close, tapering outwardly, rounded behind, yellow; spores minute, 

 ellipsoid, 3-4 fx long ; stipe slender, glabrous, slightly tomentose at the base, equal or tapering 

 downward, stuffed or hollow, concolorous above, 2.5 cm. long, 2-4 mm. thick. 



Type locality: North Klba, New York. 

 Habitat: Ground under spruce and balsam trees. 

 Distribution: New York, Vermont, and Maine. 

 Illustrations: Ann. Rep. N. Y. State Mus. 25: pi. 1, f. 5-8. 



43. Melanoleuca chrysenteroides (Peck) Murrill. 



Agaricus {Tricholoma) chrysenteroides Peck, Ann. Rep. N. Y. State Mus. 24: 60. 1872. 



Pileus fleshy, convex or plane, not at all umbonate, firm, 2.5-5 cm. broad; surface dry, 

 glabrous or slightly silky, pale-yellow or buff, becoming dingy with age, margin sometimes 



