Parr 5, 1916] AGARICACEAE 331 
ellipsoid or subglobose, 6-8 X 4-6 u: stipe long or short, straight or flexuous, hollow, glabrous, 
viscid, bright-lemon-yellow, 5-30 cm. long, 2-4 mm. thick. 
TYPE LOCALITY: Richmond County, New Vork. 
Hasitat: On decaying pine leaves. 
DISTRIBUTION: Known only from the type locality. 
ILLUSTRATION: Bull. N. Y. State Mus. 167: pl. 10. 
47, Prunulus alcaliniformis Murrill, sp. nov. 
Pileus conic to broadly convex, the umbo becoming inconspicuous with age, gregarious, 
very abundant, 1-2 cm. broad; surface dry, glabrous, furoso-avellaneous, the umbo slightly 
darker at times, radiate-striate over the lamellae, margin concolorous, appressed when young: 
context thin, white, with sweetish taste and pleasant odor; lamellae adnate, breaking away 
from the stipe with age, broad, slightly ventricose, distant, several times inserted, white, with 
an ashy tint: spores ellipsoid, pointed at one end, smooth, hyaline, 8-9 X 5 u: stipe long, 
slender, equal, dry, glabrous, avellaneous, whitish at the apex, mycelioid at the base, holiow, 
cartilaginous, 5~7 em. long, about 2 mm. thick. 
Type collected among twigs and needles under a Norway spruce in woods in the New York 
Botanical Garden, June 14, 1911, W. A. Murrill (herb. N. Y. Bot. Gard.). 
Hasitat: On and about dead coniferous wood and needles. 
DISfRIBUTION: Massachusetts, New York, and Alabama. 
ILLUSTRATION: Mycologia 4: 1. 68, f. 9 (as Mycena vexans). 
48. Prunulus scabripes Murrill, sp. nov. 
Pileus campanulate, not umbonate, solitary or gregarious, 2 cm. broad; surface dry, 
glabrous, avellaneous, shining, slightly striate, margin entire, concolorous: lamellae nearly 
free, arcuate, subdistant, rather broad near the margin, ashy-white: spores oblong-ellipsoid, 
smooth, hyaline, densely granular, 8-9 X 4-5 u: stipe cylindric, equal, hollow, cartilaginous, 
avellaneous, minutely and densely scabrous, especially at the apex, 7 cm. long, 2-3 mm. thick. 
Type collected among grass by the roadside in thin woods at Lake Placid, Adirondack Moun- 
tains, New York, October 3-14, 1912, W. A. & Edna L. Murrill 864 (berb. N. Y. Bot. Gard.). 
DistRiBvuTION: Known only from the type locality. 
49. Prunulus paluster (Peck) Murrill. 
Agaricus paluster Peck, Ann. Rep. N. Y. State Cab. 23: 82. 1872. 
Mycena palustris Sacc. Syll. Fung. 5: 282. 1887. 
Pileus convex to expanded, with a small, acute umbo, 1-2 em. broad; surface grayish- 
brown, whitish-gray in drying and apparently covered with numerous whitish fibrils, margin 
striatulate: lamellae not uncinate, subfree, broad, subventricose, sordid-white: stipe thin, 
equal or slightly attenuate upward, glabrous, pallid, hollow, villose at the base, 8-10 cm. long. 
TYPE Locality: Sandlake, New York. 
Hasitat: Among sphagnum in a cranberry marsh. 
DISTRIBUTION: New York and New Jersey. 
InLustrations: Ann. Rep. N. Y. State Mus. 23: pl. 5, f. 6-11. 
; 50. Prunulus cymbaliferus (Mont.) Murrill. 
Agaricus (Mycena) cymbaliferus Mont. or eect 110. 1856. 
Mycena cymbalifera Sacc. Syll. Fung. 5: 273. 1887. 
Pileus membranous, convex to expanded, amply umbonate, 1.5-2.5 cm. broad; surface 
white to gray, becoming brown when dry, margin undulate, expanded, striatulate: lamellae once 
inserted, scarcely attached, white, linear, the ends attenuate: stipe very long, fragile, fibrillose, 
hollow, the base decurrent, fusiform, radicate, 15 cm. long, 2 mm. thick. 
TYPE Locality: Columbus, Ohio. 
Hasirat: On the ground among leaves. 
DistRrBuTion: Known only from the type locality. 
51. Prunulus murinus Murrill, sp. nov. 
Pileus conic, not fully expanding, thin, scattered, 1.5-2 cm. broad; surface dry, glabrous, 
radiate-striate, murinous, slightly paler on the margin: lamellae adnate, of medium distance, 
narrow, whitish or grayish to pale-umbrinous, the edges entire, concolorous: spores broadly 
