; 
WILLIAMS: PERUVIAN MOSSES 329 
wa ; 
ose oa leaf where it becomes four or five cells wide; costa 
betally a ea from a broad, reddish brown base, tapering 
hexagonal, in 7 slender apex; cells in upper leaf rhomboidal or 
aeiels cael leaf larger and more or less rectangular, all 
lower leaf; th ickened walls distinctly pitted, at least in the 
wets sae e median cells about 16 » wide and 40-50 p» long; 
few 5 Grae ree leaves about the length of the stem-leaves, 
ishing a littl ned oblong, acute, serrulate and with costa van- 
piiitent ee elow the apex; seta about 2 cm. long; capsule 
is hock ahs sporangium rather narrowly ovate and tapering 
exothecal c ae one half the length of the sporangium, the median 
slightly praia irregularly elongate with evenly thickened, mostly 
i Neng 4 za walls, the stomata abundant in the neck, about 
widest the Me us large; peristome-teeth lanceolate, about 100 g 
outer plates fr oe and 600 u high, with hyaline borders and the 
nied wider has A peace! mostly one and one half to two 
inner dceinent ert igh, the inner lamellae without cross-walls; 
Gor the ais ae er one the height of the teeth, keeled and solid 
slender cilia a an line, very slender-pointed with mostly two long, 
epores fourh etween them, sometimes distinctly appendiculate; 
ough, up to 20 uw in diameter; lid highly convex-apiculate. 
— Urubamba Valley, about 3,600 ™., May, 1915, 
am Bingham 730. 
ew is, I believe, the only Brywm known having inflorescence 
ve described; the flagella also are unusual. 
BRYUM DENsIFOLIUM Brid. 
Ap aon on damp earth, 2,900 m., July, 1911, 
nna, 912 m., August, 1911, Foote 14. 
Mnium ticutatum C. Miill. 
Lucma, on dead wood, 2,130 m., 
mixed with Cyclodictyon aeruginosum ( 
stomum brachydontium Bruch. ; Urubamba, 
July, 1911, Foote 16. 
ANACOLIA suBsESSILIS (Tayl.) Broth. 
Urubamba, on loose earth and rocks, 2,900 m., July, 1917, 
Foote 17; Ollantaytambo, about 3,000 ™., Cook & Gilbert, May, 
1915, 504, 749, 7714. 
BREUTELIA BRYOCARPA Herzog. 
Lucumayo Valley, 1,800-3,600 ™., June, 1915, Cook & Gilbert, 
I320a. 
Foote 13; 
Aug. 1911, Foote 15, growing 
Mitt.) Broth. and Tricho- 
on wet earth, 2,900 m., 
