196 
teeth ; cilia one or two, nearly as long as the segments, strongly 
nodose ; spores minutely roughened, 17-195, maturing in autumn. 
Type locality, mountains of New England. 
On earth and stones in wet shady places, especially in moun- 
tain regions. Northeastern United States and eastern Canada; 
south to Maryland ; west to Wisconsin. 
ILLUSTRATIONS.—Sull. Icon. Musc. pl. 778. 
ExsiccaTi.—Sull. & Lesq. Musc. Bor. Am. (Ed. 1) 338, 
(Ed. 2) 507 ; Aust. Musc. Appal. 329 ; Macoun, Can. Musc. 440; 
Ren. & Card. Musc. Am. Sept. Exsic. 109. 
Easily distinguished by its rostellate capsule, short leaf-cells 
and twisted leaf apices. The species varies considerably in length 
of the acumination of leaves so that var. De/amarei Ren. & Card. 
Fl. Miq. 50, does not seem worthy of special mention, although I 
have not seen specimens of that form. 
25. BRACHYTHECIUM VELUTINUM (L.) Br. & Sch. Bryol. Eur. fasc. 
52—53. pl. 538. 1853. 
Hypnum velutinum L. Sp. Pl. 358. 1753. 
Hypnum intricatum Schreb. Sp. Flor. Lips. 1771. 
Hypnum declivum Mitt. Journ. Linn. Soc. 8: 33. pl. 6. 1865. 
Brachythectum pseudo-erythrorrhizon Kindb. Hedwigia, 35: 68. 
1896. 
Gametophyte in wide, dark green to light yellowish-green mats ; 
primary stems about 5 cm. long, creeping, radiculose with fascicled 
radicles, irregularly divided, very sparingly leafy, leaves often 
reduced or even wanting in places, branching irregularly pinnate ; 
branches short, 2-5 mm. in length ; branch leaves loosely spread- 
ing, somewhat falcate-secund at the ends of the branches, lanceo- 
late to ovate-lanceolate, 1—1.3 X 0.25-0.30 mm., gradually long- 
acuminate; apex usually falcate or twisted ; margin serrate ; costa 
extending beyond the middle, often toothed above on the back ; 
median cells linear, 12:1 ; quadrate alar cells very few, confined to 
the extreme angles; stem leaves more narrowly lanceolate, 
usually longer acuminate, often much reduced in size : monoicous ; 
male branches gemmiform; antheridia short-oblong, nearly 
sessile; inner perigonial leaves ovate-lanceolate, acute, bordered 
