Harper—Species of Hypholoma, 
115 ^ 
cmtifractum is shown in PL LXXXII. The plants grew in a 
yard among grass at Geneseo, Ill, in June. 1A perfect pilous 
could scarcely he found. The plants began to crack and peel as 
soon as they started to grow. Peck’s Hypholoma cutifractum, 
Torr. Bull. Dec. 1895 p. 490, was based on forms like this col¬ 
lected in Kansas by Bartholomew. The plant is distributed in, 
Pun. Col. 1303. The specimens in our copy are not much 
cracked. A series of cracked forms can probably be found cor¬ 
responding to each species in the group. 
c. Pilous with a dark watery disk and light colored margin. 
Hypholoma madeodiscum Pk. is described in X. Y. State * 
Hus. Rep’t 38 p. 88, and Bull, 150 p. 75. The characteristic 
feature which gives the plant its name is that the moisture es¬ 
capes from the margin of the pileus before it does from the disk. 
The plant grows on logs! with a scattered habit, has the young 
lamellae whitish and the stem striate at the apex. Peck has seen 
the plant but once. It suggests Hypholoma leucotephrum. In 
our photographs of that species the disk of the pileus is darker 
than the margin. 
d. Pileus thin, stem slender, striate. 
Hypholoma hymenocephalum Pk. is described in X. Y. State 
Mus. Rep’t 31, p. 34. It grows on damp ground among fallen 
leaves and is remarkable for the very thin pileus and slender 
stem. It has young gills whitish and stem] striate nearly to the 
top. The photograph of Hjypholoma incertum in Mjcllvaine PI. 
XCVII and Hard, PL XXXVII suggests this form though the.- 
illustration does not show a striate stem. 
e. Stem long, pilei relatively narrow. 
Hypholoma longipes Pk. PL LXXXIII A. 
Long stemmed plants are reported from the Pacific 
coast. The photograph was made from dried specimens of 
plants collected at Sumner, Washington. They agree exactly 
with Peck’s description of Hypholoma longipes, Torr. Bull. 
Hay, 1895, p. 204, even to the umbilicate apex of the pileus in 
