178 NORTH AMERICAN FLORA [VoLumE 10 
ventricose; spores broadly fusiform, smooth, melleous under the microscope, 7-8 X 5-6 u; 
stipe cylindric, concolorous, tubular, firm, pruinose-fibrillose at the apex, 3 cm. long, 1 mm. 
thick, 
Type collected among mosses in a swamp at Redding, Connecticut, August 27, 1902, F. S. 
Earle 1246 (herb. N. Y. Bot. Gard.). 
DIsTRIBUTION: Known only from the type locality. 
29. Naucoria pruinatipes (Peck) Sacc. Syll. Fung. 5: 842. 1887. 
Agaricus pruinatipes Peck, Ann, Rep. N. Y. State Mus. 29: 39. 1878. 
Pileus regular, convex, 2.5-3.5 cm. broad; surface smooth, hygrophanous, brownish 
when moist, ochraceous-yellow when dry; context whitish; lamellae crowded, nearly plane, 
rounded behind, pale-cinnamon; spores subellipsoid, brownish-ferruginous, 6» long; stipe 
equal, firm, stuffed or hollow, pruinose, striate, pallid or cinereous, 2.5-5 cm. long, about 2 
mm. thick. 
Tyrer Locatity: Greig, New York. 
Hasrtat: On the ground in woods. 
DistRisutION: New York. 
30. Naucoria pallidomarginata (Peck) Murrill. 
Agaricus pallidomarginatus Peck, Bull. Buffalo Soc. Nat. Sci. 1: 50. 1873. 
Hebeloma pallidomarginatum Sacc. Sylt. Fung. 5: 804. 1887. 
Naucoria paludosa Peck, Ann. Rep. N. Y. State Mus. 41: 68. 1888. 
Naucoria uliginosa Peck, Ann. Rep. N. ¥. State Mus. 54: 149. 1900. 
Pileus very thin, broadly convex or plane, 1.2-2.5 em. broad; surface glabrous, hygro- 
phanous, brown and striatulate on the margin when moist, buff-yellow when dry; context 
subconcolorous; lamellae crowded, thin, rather broad, adnexed, at first yellowish or pallid, 
then brownish-ochraceous, uneven or crenulate on the edges; spores ferruginous, ellipsoid, 
uniguttulate, 10-12 X 5-6 4; stipe slender, firm, equal, hollow, brittle, glabrous, pallid or 
brownish, 2.5—-5 em. long, 1-2 mm. thick. 
TyPE LocaLity: Sandlake, New York. 
Hasirat: In wet, marshy, or damp ground. 
DistrRrsuTion: New York and Washington. 
31. Naucoria umbriniceps Murrill, sp. nov. 
Pileus rather thin, convex to subexpanded, slightly umbonate when young, about 1 cm. 
broad; surface glabrous, hygrophanous, zonate when fresh, umbrinous with an isabelline tint; 
lamellae sinuate, plane, broad, subdistant, fulvo-umbrinous at maturity, pallid and finely 
serrulate on the edges; spores ellipsoid, smooth, pale-yellow under the microscope, 7 X 3-4 » 
stipe tapering upward, slender, tough, pruinose to glabrous, dull-brownish-pallid, 2 cm. long, 
1,5 mm. thick. 
Type collected on dead deciduous wood in woods at Lake Placid, Adirondack Mountains, New 
York, July 17-29, 1912, W. A. & Edna L. Murrill 189 (herb. N. Y. Bot. Gard.). 
DISTRIBUTION: Known only from the type locality. 
32. Naucoria serrulata Murrill, sp. nov. 
Pileus convex to subexpanded, gregarious, 2-2.5 cm. broad; surface smooth, glabrous, 
hygrophanous, very uniform in color, umbrinous-fulvous, finely striate, margin entire, con- 
colorous; context with mild taste; lamellae adnate, sometimes separating with age, rather 
crowded, broad, plane, umbrinous-avellaneous, gravish and minutely serrulate on the edges; 
spores ellipsoid, smooth, pale-yellowish under the microscope, 8-9 X 5-6 u; stipe short, sub- 
equal, smooth, glabrous, pallid or somewhat umbrinous, 2-2.5 cm. long, 2 mm. thick. 
‘Type collected on a dead beech log in woods at Lake Placid, Adirondack Mountains, New Vork, 
July 17-29, 1912, W. A. & Edno L. Murrill 13 (herb. N. Y. Bot. Gard.). 
Hasrtar: On dead logs in woods. 
DISTRIBUTION: Vicinity of Lake Placid, Adirondack Mountains, New York. 
