286 BOTANICAL GAZETTE [ OCTOBER 
rows narrower than those toward, the costa, the latter 17 to 26 
wide by 40 to 60 long, walls moderately thickened, above the 
cells pass rapidly through hexagonal or rhomboidal along the 
margin to almost linear hexagonal at the middle region, 10.4# 
wide by 54 long, varying in width from 9 to 11 and in length 
from 45 to 60, rarely reaching 100, in the apical region, cells 
essentially like those of the middle region, 10.7” wide by 56m 
long, varying in width from g to 11p and in length from 40 to 
68; perichztial leaves ovate lanceolate to oblong lanceolate, 
the outer spreading, the inner erect, all costate, serrate above. 
Sporophyte medium to large: seta 2 to 4.5™ long, 225 
to 325m in diameter, cortex of three to four layers of incras- 
sate cells, 8.5 to 17m in diameter: central strand large, 43 to 
524 in diameter, of thirty to forty-five rows of cells; cells of 
ground tissue 9 to 33“ in diameter: capsule oval to short cylin- 
dric, asymmetric, moderately incurved from an erect base to hori- 
zontal or cernuous, pale throughout or darker on the convex 
side, constricted under the mouth when dry ; collum small, one- 
sixth to one fifth the sporangium ; cells of exothecium mostly 
parenchymatous throughout, occasionally prosenchymatous on 
the convex side, cells on the concave side 38.5 wide by 51.54 
long, ranging from 26 to 64.5 # wide and from 35 to 85» long, 
those of the convex side 33 wide by 105 long, varying in width 
from 18 to 47m and in length from 55 to 1804; cell walls 2 
to 3u thick, three to six rows of cells under the peristome 
smaller, hexagonal, isodiametric or occasionally transversely 
elongated, 10.7 to gow long by 17 to 34m wide ; stomata thirty- 
five to forty-five to the capsule, 42m wide by 57» long, scattered; 
teeth of peristome linear lanceolate, yellowish brown at base, 
margined, margin narrow below, abruptly wider at the middle, 
passing into the hyaline tip, upper half of teeth serrate, trams- 
versely striate on the back in the basal half, coarsely papillose 
above; endostome equaling the teeth, yellow, densely and 
coarsely papillose throughout, membrane not equaling the seg- 
ments ; the latter narrowly lanceolate, strongly carinate, open 
along the keel between the articulations, cilia two, occasionally 
