Murrill: Agaricaceae of Pacific Coast 
215 
Melanoleuca avellanea sp. nov. 
Pileus convex, becoming plane, thick, fleshy, solitary, reaching 
8 cm. broad; surface dry, smooth, glabrous, avellaneous, margin 
entire, concolorous, indexed on drying; lamellae slightly sinuate 
varying to adnate, close, narrow, arcuate, pure-white changing 
to yellowish on drying; spores ellipsoid, smooth, hyaline, about 
7X3/^; stipe much enlarged at the base, rather short, fleshy, 
solid, white, smooth, slightly scabrous above, about 7 cm. long and 
2 cm. thick, reaching 4 cm. thick at the base. 
Type collected in sandy soil mixed with humus, in woods near 
Seattle, Washington, October 20-November i, 1911, IF. A. Mtir- 
rill 26’j. Also collected on decayed wood in the same locality, W. 
A. Murrill 274. 
Melanoleuca avellaneifolia sp. nov. 
Pileus fleshy, rather thick, convex to expanded, gibbous, sub- 
cespitose, reaching 9 cm. broad ; surface polished, smooth, some- 
what viscid, dull-blackish-fuliginous, margin entire, concolorous, 
indexed on drying; lamellae sinuate, ventricose, several times in- 
serted, not crowded, pale-avellaneous ; spores subglobose, smooth, 
hyaline, granular, about 5. 5-6.5 /a; stipe equal, fleshy, solid, 
smooth, glabrous, pure-white, about 8 cm. long, 1.5 cm. thick. 
Type collected in soil in woods at Mill City, Oregon, 
November 9, 1911, IV. A. Murrill 841. Several plants were 
found, but only one was saved, owing to the bad weather. 
Melanoleuca bicolor sp. nov. 
Pileus very firm, convex to nearly plane, somewhat gibbous, 
about 6 cm. broad ; surface dry, smooth, glabrous, avellaneous 
with a rosy tint, margin concolorous or slightly paler, often split- 
ting ; lamellae broad, rather close, emarginate with a slight decur- 
rent tooth, firm, drying readily, white ;, spores subglobose, smooth, 
hyaline, 6-y fi.; stipe equal or somewhat enlarged below, white, 
smooth, minutely tomentose to glabrous, solid, 5-6 cm. long, 
about I cm. thick. 
Type collected in humus in woods at Glen Brook, Oregon, 
November 7, 1911, W. A. Murrill 745. What appears to be the 
same species was collected on the ground under an oak at ^Mission 
Canon, California, spring of 1913, O. M. Oleson //j"'. These 
