2058 
dry; lamellae broad, adnate or slightly decurrent, tawny-buff, 
becoming brownish-ferruginous; stem slender, hollow, yellowish, 
with a white mycelium at the base; spores elliptical, .0003 in. 
long, .00016 broad. 
Pileus 5 to 10 lines broad; stem 12 to 18 lines long, .5 to 1 
line thick. 
Sticks and leaves under trees. Pasadena. January. McClatchie, 
When young, slight vestiges of a veil are visible, connecting 
the incurved margin of the pileus with the stem. 
PLUTEOLUs LUTEUS. Pileus thin, at first subovate, then convex 
or subcampanulate, glabrous, viscid, slightly striate on the margin, 
yellow ; lamellae numerous, close, free or but slightly adnexed, yel- 
lowish becoming ferruginous; stem slender, hollow, slightly 
thickened toward the base, striate at the top and there sprinkled 
with mealy particles, yellowish; spores elliptical, .0004 to .0005 
in. long, .00024 to .0003 broad. : 
Pileus 6 to 12 lines broad; stem 1.5 to 2.5 in. long, I to 2 
lines thick. Plant very fragile, gregarious. Under trees. Pasa- 
dena. December. McClatchie. 
The yellow color and viscid pileus are prominent characters of 3 
this species. In some of the dried specimens the lamellae appear 
free, in others slightly adnexed, but because of the viscid pileus I 
have referred the plant to the genus Pluteolus. 
CorTINARIUS viRGATUS. Pileus thick, fleshy, hemispherical or 
convex, obtuse or subumbonate, slightly viscid, ochraceous tinged 
with olive-buff, conspicuously virgate with reddish fibrils, flesh 
dingy-white; lamellae subdistant, adnexed, at first subcinnamon, 
then ochraceous-russet ; stem short, stout, solid, enlarged and 
fibrillose at the base, pale-ochraceous; spores subglobose or 
broadly elliptical, .00024 to .0003 in. long, .0002 to .00024 broad. 
Pileus 3 to 4 in. broad; stems about 2 in. long, 8 to 12 lines 
thick. 
Undér oak trees. Pasadena. February. McClatchie. 
This species is well marked by its stout habit and by the red- 
dish fibrils of the pileus. . 
AGaricus Cauirornicus. Pileus at first subconical, becoming 
convex, minutely silky or fibrillose, whitish, tinged with purple or 
brownish-purple on the disk, flesh whitish; lamellae close, free, 
Pink becoming. purplish, then blackisk-brown; stem rather long, 
Solid or stuffed, equal or tapering upward, distinctly and rather 
abruptly narrowed above the entire externally silky annulus, pallid 
