246 BOTANICAL GAZETTE [OCTOBER 
6 to 8u in diameter; cells of ground tissue 8 to 29m diameter ; 
branches short, 2.5 to 5™™, erect or spreading: leaves linear lanceo- 
late, gou wide by 340m long, varying in width from 70 to 105p 
and in length from 280 to 400p, usually widest at very base, 
tapering regularly to apex, point slender, entire at base, subden- 
ticulate from below the middle to the apex or distinctly denticu- 
late in the upper third, remote, open, spreading in all directions, 
ecostate or with a second layer of cells in costal region of basal 
fifth; leaf cells parenchymatous at base, soon becoming prosen- 
chymatous above, short rectangular in alar region, averaging 7.5 by 
18, shorter near the middle of base, occasionally quadrate, 6.74 
in diameter, becoming linear toward middle of the leaf, 5.6 by 404, 
occasionally reaching the extreme length of 60p, rectangular, 
rhombic quadrangular or hexagonal ; above the middle all prosen- 
chymatous, many slightly vermicular, in the apical region 
shorter, 5.6 by 34.5, occasionally reaching 42u in length; peri- 
chetial leaves long acuminate from an ovate base, coarsely and 
irregularly dentate above, inner larger than stem leaves, reach- 
ing 200u wide by 750m long. 
Sporophyte small, 5™™ long: seta reddish brown below, pale 
above, 70 to 80m in diameter, central strand of few rows of cells 
15 to 18m in diameter, cortex of one or two layers of cells 6 to 
18.5min diameter, cells of ground tissue 9 to 17“: capsule minute, 
o.5™™ in length including the operculum, straight or slightly 
cernuous, Oval, occasionally obovate, 1:2, erect, inclined or pendu- 
lous, strongly contracted under the mouth, when dry turbinate; 
cells of exothecium parenchymatous, regular, short rectangular, 
quadrate, or slightly transversely elongated, average size 20¥ 
wide by 23m long, walls thin, 1 to 2.5 thick, two or three rows 
of cells under the peristome transversely elongated, 18 by IIH; 
stomata few, two to six, 21.5 wide by 26m long : peristome teeth 
pale with narrow hyaline border, transversely striate on the back 
of lower three-fifths, hyaline and papillose above ; endostome 
equaling teeth, membrane about one-half the length of segments, 
the latter slender, pale, not open along the keel, finely papillose, 
as are the I or 2 slender nodose cilia which equal the segments 5 
