324 WILLIAMS: PERUVIAN MOSSES 
broader part of the leaf narrow and elongate with pitted walls. — 
The collection is scanty and sterile. 
CAMPYLOPUS LEUCOGNODES (C. Miill.) Paris. 
Lucumayo Valley, 3,600 m., June, 1915, Cook & Gilbert 12044. 
FIssIDENS ASPLENIOIDEs (Sw.) Hedw. 
San Miguel, on rock, 1,820 m., September, 1911, Foote I. 
FIssIDENS CRIspUS Mont. 
Ollantaytambo, about 3,000 m., May, 1915, Cook & Gilbert 754. 
FISSIDENS RIGIDULUS Hook. f. & Wils. 
Ollantaytambo, on rock, about 3,000 m., May, 1915, Cook & 
Gilbert 670. 
TRICHOSTOMUM BRACHYDONTIUM Bruch. 
Cuzco, on dry rock, about 3,500 m., July, 1911, Foote re 
these Cuzco specimens have Jeaves shorter and broader than in 
typical specimens and possibly should not be referred here, but 
they seem to be only a stunted form of the species; Lucma, on 
dead wood, 2130 m., August, 1911, Foote 15a. 
TRICHOSTOMUM SEMIVAGINATUM Schimp. : 
Ollantaytambo, about 3,000 m., May, 1915, Cook & Gilbert 
50la. 
Leptodontium integrifolium sp. nov. 
Dioecious, the male plants about like the fertile, the flowers 
with outer leaves similar to those of the stem, the inner broadly 
oblong, rounded obtuse, scarcely one third the length of the 
outer, costate, of mostly golden-brown, elongate, smooth cells 
enclosing five or six antheridia and numerous, longer, filiform 
paraphyses: fertile plants simple or slightly branched, the stems 
3-4 cm. long with scattered, loose tufts of radicles and leaves: 
when dry rather loosely imbricate and incurved-flexuous, when 
moist spreading-recurved; stem-leaves 3-3.5 mm. long, ovate- 
lanceolate, the entire margins strongly recurved from a little 
below the apex to near the base and papillose; costa stout, papillose 
on the back, ex 
long; cells of the upper part of leaf rather obscure, scarcely elon- 
except near the margin and costa; perichaetial leaves about 6 mm- 
long, convolute, with a subulate, abruptly spreading, serrulate | 
point; fruit unknown. (PLATE 17, FIGS. I-7.) 
