24 
falcate. Lid of the capsule rarely rostrate; pedicel smooth  . 
or (in one species) faintly rough above. Stem sometimes 
with paraphyllia. 
62. Hypnum. Leaves often mamillose above, less — 
often recurved at the borders. Stem often pinnate. E 
Fam. 14. PFontinalacez. 
I. Fontinalece. Leaves nerveless, not faleate. Cap- ` 
sule immersed; lid not often rostrate; calyptra conic. E 
. 63. Fontinalis. Peristome long. Leaves not lim- 
bate, often tristichous; alar cells more or less distinct. 
Dioecious or (rarely) paroecious. : 
II. Dichelymec Leaves costate and faleate. Cap- 
sule mostly exserted; lid rostrate; calyptra cucullate. 
64. Dichelyma. Capsule mostly exserted; teeth — 
long; calyptra large. Leaves usually not limbate; alar P». 
cells nearly indistinct; costa often excurrent. Dioecious. 4 
65. Brachelyma. Capsule immersed; teeth short; 
calyptra very small and short. Leaves limbate ; costa not = 
excurrent. E 
Fam. 15. Schistostegacez. : 
66. Schistostega. Capsule pedicellate, subglobose. 4 
Fam. 16. Eustichiaceæ, | 
67. Eustichia. Capsule pedicellate, globose. 
Fam. 17. Polytrichacez, : : 
A. Leaves limbate by narrow cells, not sheathing. 
68. Catharinea. Leaves not lamelliferous at back, _ 
not contracted above the base, usually long, always flaccid, 
crisped when dry; lamelle few, not sinuolate. Capsule 
symmetric without angles and appendage (apophysis), not - 
papillose ; calyptra glabrous or at apex rough, long-acumi 
nate. Sometimes paroecious, mostly dioecious. 
B. Leaves not limbate, usually sheathing. Dioecious. 
4. Leaves with sinuolate or serrate lamellæ. - 
