Part 2, 1917] AGARICACEAE 129 
4. Pluteus unakensis Murrill, sp. nov. 
Pileus thin, convex to expanded, umbonate, 2 cm. broad; surface densely silky-fibrillose, 
grayish-white, darker on the umbo, margin striate; lamellae free, crowded, narrow, white to 
pink; spores minute, subglobose, rose-colored, 4 X 34; stipe cylindric, minutely fibrillose, 
white, 4-5 cm. long, 2-3 mm. thick. 
Type collected in mixed woods at Unaka Springs, Tennessee, August 18-24, 1904, W. A. Murrill 
853 (herb. N. Y. Bot. Gard.). 
DISTRIBUTION: Known only from the type locality. 
5. Pluteus aurantiacus Murrill, sp. nov. 
Pileus convex, umbonate, not expanding, regular, gregarious, 2 cm. broad; surface gla- 
brous, rugose, deep-orange-yellow, margin entire, striate; lamellae free, rather broad, sub- 
crowded, pallid to salmon-colored, entire and concolorous on the edges; spores subglobose, 
rose-colored, 6-7 u; stipe slender, eqtial, hollow, glabrous, shining, pale-yellow, fragile, 4-5 cm. 
long, scarcely 2 mm. thick. 
Type collected on decayed wood among mosses in swampy ground at West Park, New York, 
August 1, 1903, F. S. Earle 1664 (herb. N. Y. Bot. Gard.). 
DISTRIBUTION: Known only from the type locality. 
6. Pluteus rugosidiscus Murrill, sp. nov. 
Piles small, thin, regular, convex to subexpanded, slightly umbonate, solitary, 1-1.5 
em. broad; surface glabrous, moist, greenish-yellow, smoky-green on the disk, with pruinose, 
reticulate, raised, radiating lines, margin entire, concolorous, not striate; lamellae free, broad, 
ventricose, crowded, inserted, white to salmon-colored, entire and concolorous on the edges; 
spores ellipsoid, smooth, rose-colored, apiculate, 7 X 3.5 4; stipe slender, cylindric, equal, 
smooth, glabrous, greenish-yellow, whitish-tomentose at the base, 2.5 cm. long, 1 mm. thick. 
Type collected on dead wood in deciduous woods at Falls Church, Virginia, July 2-6, 1904, 
W. A. Murrill 111 (herb. N. Y. Bot. Gard.). 
DISTRIBUTION: Known only from the type locality. 
7. Pluteus melleus Murrill, sp. nov. 
Pileus rather small, convex to subexpanded, umbonate, regular, solitary, 1-2 cm. broad; 
surface glabrous, rugose, pale-melleous, slightly darker on the umbo, margin entire to undu- 
late, concolorous; lamellae free, broad, ventricose, crowded, several times inserted, white to 
salmon-colored, entire and concolorous on the edges; spores broadly ellipsoid, smooth, rose- 
colored, 7 X 5-6 y; stipe very slender, cylindric, equal, smooth, glabrous, pale-melleous, 2 cm. 
long, 1 mm. thick. 
Type collected on much decayed wood in mized woods at Unaka Springs, Tennessee, August 
18-24, 1904, W. A. Murrill 840 (herb. N. Y. Bot. Gard.). . 
Distrisution: Adirondack Mountains, New York, and the mountains of Tennessee. 
8. Pluteus lepiotiformis Murrill, sp. nov. 
Pileus small, convex, not fully expanding, not umbonate, solitary, 1-2 cm. broad, much 
resembling in a dried condition certain small species of Lepiota; surface not striate, pale-isa- 
belline, with black, strigose, appressed hairs, which are more abundant on the disk, margin 
pallid, often lacerate with age; lamellae free, subcrowded, rather broad, white to pale-salmon- 
colored, fragile, entire and concolorous on the edges; spores globose, smooth, rose-colored, 7 ; 
stipe very slender, equal, smooth, glabrous, white, about 3 cm. long and 1 mm. thick. 
Type collected on the ground in wet woods in City Park, New Orleans, Louisiana, September 6, 
1908, F. S. Earle 74 (berb..N. ¥. Bot. Gard.). Se 
DistrRIBUTION: Vicinity of New Orleans, Louisiana. 
9. Pluteus melleipes Murriil, sp. nov. 
Pileus thin, broadly convex to expanded, obtuse, 1-2.5 cm. broad; surface hygrophanous, 
glabrous, rugose, cinnamon when moist, ochraceous when dry, margin not striate; lamellae 
