_ Leaves crowded with subulate gen. not long acumen, entire 
. and recurved below, above middle us. faintly denticulate; middle 
and upper cells linear; costa often reaching in acumen. Stem- 
leaves subovate-oblong less distinctly triangular; branch-leaves 
_ subtriangular ovate-lanceolate. Perichetial leaves long-triangular 
 fliform-pointed. Capsule us. cylindric straight; cilia rudimen- 
tary; segments not well-evolute; annulus none; lid long-conic 
 &eute; pedicel not long. Tufts compact us. green silky glossy. 
Stem creeping; branches subjulaceous often sciuroid-curved. 
Dioecious but often fruiting. — Trees and rocks, sometimes in 
. Water. Amer. not r. Can.: Macoun. U. S.: Sullivant, com. C. 
Mueller. 
is *C.stenocarpum (Ren. et Card., as var.) Kindb. (in Hedwigia 
1896). 
Capsule narrower; lid from convex base abruptly rostellate. 
Leaves distinctly denticulate nearly all around. — Amer, r. 
U. S. Wisconsin: Roell. 
 SCspurio-aeuminatum C. M. et Kindb. — Brachythecium 
. Cat. Can. m. 
. Differs from C. acuminatum: Capsule curved; endostome well- 
 fvolute; cilia long. Leaves distinctly denticulate all around. 
 Perichetial leaves subulate-acuminate. Tufts loose sparingly 
Tadieulose. Monoecious. — Logs r. Amer. Can.: Macoun. 
.. B. Branch-leaves obtusate obtuse; apical cells suboblong, 
lower oblong-lanceolate. Stem-leaves also denticulate. 
 9.Calsioides Kindb. in Pittonia 1892. 
. , Leaves indistinctly decurrent; costa reaching to acumen or 
Jn branch-leaves shorter. Stem-leaves broadly ovate-lanceolate, 
attenuate to a short acute or subulate acumen, faintly denti- 
ulate above middle, more distinctly serrulate at acumen; alar 
cells quadrate numerous, the others sublinear. Branch-leaves 
narrower, more sharply serrate above. Perichetial leaves abruptly 
Narrowed to a long subuliform denticulate often deflexed acu- 
mn. Capsule subcylindric curved; teeth orange; segments 
: Yellow, lacunose in middle; cilia not appendiculate; lid flat 
apiculate; pedicel rough about 16 centim. long. Tufts bright 
Briten glossy. Stem curved pinnate; branches obtuse often cur- 
Ned when dry. Dioecious. — Rocks r. Amer. California: Mar- 
Shall A, Howe. 
^ ilies ooo Spei POS e 
A. Capsule us. straight symmetric; segments short; cilia none. 
Stem-leaves somewhat long-decurrent, us. diversiform; alar cells mie 
