1150 Wisconsin Academy of Sciences , Arts , and Letters. 
Pileus about 2 inches broad, fleshy, convex to expanded, 
umbonate, obtuse, even, smooth, dry, yellowish on the margin, 
reddish bay in the center. Flesh yellow, bitter. Lamellae 
adnate, close, linear, yellow, becoming greenish and olivaceous 
brown. Stem 2-5 inches long, 2-3 lines thick, hollow, slender, 
flexuous, fibrillose, yellow. Spores 3-4 x 6-7 /l On stumps 
and logs and on the ground. 
II. Vjscida. 
Hypholoma ambiguum Pk. # PI. LXXYII A. 
The plants represented in PL LXXV1I A grew solitary on the 
ground in open woods at Sumner, Washington. They were 
very beautiful with the characters well defined. The pileus 
was convex, smooth, buff, evenly colored except on the very 
margin which was whitish like the veil. The margin was even 
and the pileus only slightly if at all viscid. The gills were 
close, adnate, whitish becoming dark brown with spores which 
measured 8 x 12 /l The white veil hung in large reflexed flaps 
on the margin of the pileus. It was quite thick and with 
striate ridges on the upper surface as in species of Stropharia. 
The stem was bulbous at the base, stuffed, covered with a white 
floceose coat on a buff background. It was striate groved above 
the annulus and slightly striate with lines toward the base. 
I)r. Murrill recognized the photograph at once as Hypholoma 
ambiguum Pk. It appears to be a well known plant on the 
Pacific coast. Murrill in Mycologia Hov. T912 pp. 304-305 
reports a large number of collections and says “It is one of the 
most striking and abundant gill fungi on the coast.” 
Peck’s description, Torr. Bull. June 1898, pp. 325-326, was 
based on plants collected in fir woods near Portland, Oregon. 
We give Peck’s description below but we should not have recog¬ 
nized the plant from the description. We are informed that 
the type specimens at Albany have been lost. 
“Pileus thin, convex becoming nearly plane, glabrous, sub- 
viscid when moist, straw color inclining to pale orange, the mar- 
* Mr. Sanford M. Zeller, Mycologia, May, 1914, makes a study of the 
development of this species and concludes that it belongs to the genuB 
Stropharia. 
