182 NORTH AMERICAN FLORA [VoLumE 10 
obtuse at each end, smooth, 7-8 X 4-54; stipe equal, hollow, fibrillose, subbulbous, con- 
colorous, often covered with a white tomentum at the base, 3-5 cm. long, 3-4 mm. thick. 
Type LocaLrty: Claremont, California. . 
Hasirar: Growing from decaying wood or other vegetable matter in open ground. 
DISTRIBUTION: Known only from the type locality. 
48. Naucoria badia Murrill, sp. nov. 
Pileus firm, drying easily, convex to slightly depressed, gregarious, 2 cm. broad; surface 
dry, uniformly bay, densely and conspicuously hispid-squamulose, margin concolorous, radiate- 
rugose and plicate; lamellae adnate, broad, subdistant, plane, fulvous, pubescent to serrulate 
on the edges; spores broadly ovoid, smooth, pale-melleous under the microscope, usually 
uniguttulate, 7-9 X 6-7 yw; stipe short, tough, subequal, clothed and colored like the pileus, 
1 cm. long, 2-3 mm. thick. 
Type collected on dead alder in woods at Seattle, Washington, October 20-November 1, 1911, 
W.A. Murrill 586 (herb. N. Y. Bot. Gard.). 
DistrRisuTion: Known only from the type locality. 
49. Naucoria tepeitensis Murrill, Mycologia 4: 79. 1912. 
Pileus very thin, convex, gregarious, reaching 12 mm. broad; surface smooth, whitish, 
hygrophanous, faintly striate over the lamellae, margin entire, inrolled when young; lamellae 
free to adnate, whitish, dull, several times inserted, broad, distant, the edges white and slightly 
crenulate; spores subovoid, slightly flattened on one side, smooth, uninucleate, very pale 
melleous under the microscope, 6 X 4 u; stipe crooked, arising from a mat of white mycelium, 
slightly enlarged above, smooth, glabrous, whitish, hygrophanous, 1 cm. long, about 1 mm. 
thick. 
TYPE LOCALITY: Tepeite Valley, near Cuernavaca, Morelos, Mexico. 
Hasirat: On a rotten log in a moist, virgin forest. 
DISTRIBUTION: Known only from the type locality. 
50. Naucoria jalapensis Murrill, Mycologia 4: 77. 1912. 
Pileus thin, conic to convex, umbonate, 2.5 cm. broad; surface pearly-white, slightly 
yellowish on the umbo, glabrous, dry, striate, margin at first inflexed; lamellae sinuate-adnexed, 
broad, rather distant, plane, white to ferruginous, with a purplish tint; spores ovoid or ellip- 
soid, drawn to a point at one side of the base, smooth, pale-yellow under the microscope, 
7 X 44; stipe equal, cylindric, curved, milky-white, glabrous, 5 cm. long, 2 mm. thick; veil 
fibrillose, clinging to the young margin, soon evanescent. 
Type LOCALITY: Jalapa, Vera Cruz, Mexico. 
Hasrtat: On dead wood in a moist, virgin forest. 
DISTRIBUTION: Known only from the type locality. 
51. Naucoria papularis (Fries) Sacc. Syll. Fung. 5: 856. 1887. 
Agaricus papularis Fries, Nova Acta Soc. Sci. Upsal. III. 1: 225, 1851. 
Pileus plane, very obtuge, fleshy, gregarious or cespitose, 2.5—5 cm. broad; surface white, 
rough, with innate, stalked, concolorous papules, margin thin, striatulate; lamellae adnate 
with a decurrent tooth, plane, broad, distant, pallid to cinnamon; stipe equal, fibrillose, pallid, 
hollow, tough, 4-5 cm. long, 2-4 mm. thick. : 
Type Locality: Island of St. Thomas. 
DISTRIBUTION: Known only from the type locality. 
52. Naucoria subolivacea Murrill, sp. nov. 
Pileus smooth, thin, convex to plane, not umbonate, solitary, 1 em. broad; surface smooth, 
appearing hygrophanous and glabrous but finely pubescent under a lens, not striate, uni- 
formly dull-olivaceous, margin entire, concolorous; lamellae adnate, several times inserted, 
narrow, crowded, slightly ventricose, pale-melleous, serrulate and pallid on the edges; spores 
broadly ovoid, smooth, very pale melleous under the microscope, 6-7 X 4-5 4; Stipe cylindric, 
equal, hygrophanous, pale-melleous, finely pulverulent, 1 cm. long, 1.5 mm. thick. 
Type collected on rotten wood on the ground in the Tepeite Vall i 
December 28, 1909, W. A. & Edna L. Murrill 472 (herb. NY. Bot, Gard). Seneca ames 
DistRisution: Known only from the type locality. 
