REPORT OF THE STATE BOTANIST IQ14 65 
white hairs. Specimens of M. chordalis Fr. from Sweden 
seem to be very close to M. elongatipes except that the 
texture of the stipe is more firm in M. elongatipes than in 
M. chordalis. 
16 Marasmius umbonatus Peck 
Bul. Buffalo Soc. Nat. Sci., 1:58. 1873. 
Pileus thin, tough, expanded, umbonate, gregarious, 13-19 mm 
broad; surface glabrous, alutaceous, margin smooth or substriate, 
at first incurved; lamellae interveined, branched in front, reaching 
the stipe, subdistant, narrow, white; spores 7-8 by 3.5 p; stipe 
equal, solid, fulvous above, pallid below, velvety tomentose, 2.5-4 
cm long, 1 mm thick. : 
Among needles of coniferous trees. Not common. 
17 Marasmius semihirtipes Peck 
Bul. Buffalo Soc. Nat. Sci, 1:57. 1873. 
Pileus thin, tough, convex to nearly plane or depressed, 1-2 cm 
broad; surface glabrous, reddish brown, becoming alutaceous, the 
disk darker, margin sometimes striate; lamellae slightly adnexed, 
subdistant, not narrow, white; spores 8-9 by 4.5 p; stipe equal, 
even or finely striate, tubular, reddish brown, often nearly black 
in dry plants, glabrous above, velvety tomentose toward the base, 
3-5 cm long, 1-2 mm thick. 
Upon ground among dead leaves etc., in woods. Rather common. 
Marasmius semihirtipes varies considerably in color 
and striation of the pileus and in the color and roughness of the 
stipe. 
18 Marasmius biformis Peck 
N. Y. State Mus. Bul. 67, p.25. 1903. 
N. Y. State Mus. Bul. 105, p.25. 1906) (As Marasmius longistri- 
ats, beck). 
Pileus submembranous, thin, campanulate or nearly plane, often 
becoming umbilicate, gregarious, 8-16 mm broad; surface glabrous, 
hygrophanous, striatulate when moist, rugose-striate when dry, bay- 
red or pale chestnut when moist, grayish when dry, lamellae adnate 
and joined together at the stipe, rather close, not broad, grayish or 
creamy yellow; spores 5-6 by 3.5 m; stipe even, slender, brown 
