Part 3, 1917] AGARICACEAE 179 
33. Naucoria lignicola (Peck) Sacc. Syll. Fung. 5: 838. 1887. 
Agaricus lignicola Peck, Ann. Rep. N. Y. State Cab. 23: 91, 1872. 
Pileus thin, convex, umbonate, 1.2-2.5 cm. broad; surface smooth or slightly fibritlose, 
hygrophanous, watery-cinnamon when moist, dull-yellow when dry, margin striatulate when 
moist; lamellae narrow, crowded, attached, cinnamon-colored; stipe slender, equal, hollow, 
slightly fibrillose, firm, mostly curved, reddish-brown, 2.5—5 cm. long. 
TYPe Locality: Sandlake, New York. 
Hastrat: On old logs in woods. 
DIstTRIBUTION: Northern New York. 
34. Naucoria firma Peck, Ann. Rep. N. VY. State Mus. 54: 148. 
1901. 
Pileus fleshy, firm, broadly convex, soon nearly plane, 1.5-2.5 cm. broad; surface hygro- 
phanous, blackish-brown when moist, ochraceous-brown when dry, often rugulose; context 
white, the taste farinaceous, soon changing to bitter; lamellae thin, rather narrow, crowded, 
rounded behind, adnexed, minutely floccose on the edges, pallid; spores ellipsoid, brownish- 
ferruginous, 7.5 X 5 uw; stipe firm, equal, often flexuous or curved, stuffed or hollow, fibrillose- 
striate and minutely flocculose, concolorous or a little paler, 2.5-5 cm. long, 2-4 mm. thick, 
TYPE LOCALITY: Floodwood, New York. 
Hasrtrat: On a decaying, prostrate trunk of sugar maple. 
DISTRIBUTION: New York and Massachusetts. 
InLustrations: Ann, Rep. N. Y. State Mus. 54: ol. H, f. 10-16. 
35. Naucoria platysperma Peck, Bull. Torrey Club 25: 324. 1898. 
Pileus convex, becoming nearly plane, 2.5-3.5 cm. broad; surface glabrous, slightly 
tinged with ochraceous or reddish-yellow when young, soon whitish, margin at first adorned 
with vestiges of a white, flocculent veil; context white; lamellae moderately crowded, slightly 
rounded behind, pallid, becoming brownish; spores broadly ellipsoid, 15 X 12.5 yw; stipe equal, 
stuffed with a white pith, slightly flocculent or furfuraceous above when young, whitish, the 
mycelium sometimes forming white, thread-like strands, 3.5-5 cm. long, 2-4 mm. thick. 
TyPE Locality: Compton, California. 
Hasirat: On the ground. ; 
DristRIsutron: Southern California. 
36. Naucoria pubescens Murrill, sp. nov. 
Pileus convex, not fully expanding, 1-1.5 cm. broad; surface dry, striate, uniformly 
isabelline, finely whitish-pubescent, margin thin, entire, concolorous, becoming lacerate with 
age; lamellae adnate, subdistant, ferruginous; spores ovoid, smooth, pale-melleous under the 
microscope, 7 X 4-5.5 4; stipe short, subequal, isabelline, whitish-fibrillose, cartilaginous, 
arising from a mat of white mycelium, about 1 cm. long, 1-2 mm. thick. 
Type collected on decayed wood in woods at Seattle, Washington, October 20-November 1, 
1911, W. A. Murrill 450 (herb. N. Y. Bot. Gard.). 
DistrRiputTION: Known only from the type locality. 
37. Naucoria tubariiformis Murrill, sp. nov. 
Pileus small, convex-hemispheric to nearly expanded, not umbonate, gregarious, 1-1.5 
em. broad; surface smooth, glabrous, dull-yellow, margin brown, entire, not striate; context 
cream-colored, without characteristic taste or odor; lamellae squarely adnate, broad, slightly 
ventricose, subdistant, pale-brown, pallid and entire on the edges; spores ovoid, smooth, 
brownish-fulvous, 6-7 X 4; cystidia none; stipe cylindric, subequal, cartilaginous, hollow, 
pale-brown to dark-brown, somewhat velvety at the apex, glabrous below, 3-4 cm. long, 
1,5-2 mm. thick. 
Type collected on a lawn at Stanford University, California, February 13, 1907, A. M. Patter- 
son 37 (herb. N. Y. Bot. Gard.). : 
DIstTRiBUTION: Known only from the type locality. 
