634 (384) ‘  MUSCI. (MOSSES.) 
9. O Canadénse, Br. & Sch. Differs from the preceding species in its 
more acute leaves, its shortly-exserted capsule smaller and not so constricted 
under the mouth, and in the 16 cilia of the inner peristome.— Central Ohio: 
rare; on trees. 
10. @ affime, Schrad. Larger and coarser than any of the ae ed 
leaves oblong-lanceolate, rather obtuse, mate (the upper ones rather undulate) 
on the margins, strongly Se on both surfaces ; capsule aieeseung with 
a tapering in emersed ; cilia as in No. 7; eaitvitrs slightly hairy, green- 
ish. — On rocks, Lake Superior, Agassiz. (Eu.) 
11. O. padiaeia > Nees. Stems ror 1'—2! high, loosely czxspi- 
tose ; leaves lanceolate, keeled, with recurved margins ; capsule ttre A exserted, 
tapering into the pedicel, capri! striated, chen dry ribbed near the mouth 
only; cilia of peristome 8; calyptra large, ry hairy. — hie on banks of 
Eu.) : 
the St. Lawrence River. 
12. O. leiocirpum, Br. & Sch. Size and mode of growth much as in 
the last; readily distinguished by its capsule without strie, and entirely smooth 
when abe) and by the 16 large erose-articulate cilia of the peristome. — Trees. 
Lake Superior, Agassiz. (Eu. 
§ 2. Capsule much exserted. Monecious. 
13. O. Ludwigii, Schwxgr. Stems mostly dec umbent ; leaves linear- 
slightly are re e hen much contracted and plicate 
at the mout! ner Heron er calyptra moderately hairy, laciniate at 
he base. — Give trees, Alleghany Mountains. (Eu.) 
14. O. Hutchinsia, sche: Stems aggregated in rather loose tufts; 
leaves lanceolate, carinate, scarcely reflexed on the margins, when dry erect-ap- 
pressed, not twisted ; capsule subclavate, with 8 broad stria, the apophysis grad- 
ually tapering into ‘he long pedicel ; cilia of the peristome 8; calyptra large, 
copiously hairy. — Rocks ; common in mountainous districts. (Tab. Il.) (Eu.)} 
15. O. crispum, Hedw. Stems closely tufted; leaves linear-lanceolate 
from a dilated base, much contorted and crisped when ee: slightly undulated ; 
noire clavate, when dry constricted under the mou th, with 8 strong ribs con- 
ed down the very long tapering apophysis ; peristome with 8 cilia of a dou- 
ble. row of cellules ; calyptra very hairy; sporules brown. — Trees, Alleghany 
Mountains. (Enu.) 
16. O. crispulum, Hornsch. More delicate than the last; leaves nar- 
rower and less crisped when dry ; capsule shorter, pale, of thin texture, w 
on not contracted below the mouth, its ribs less distinct; at ier 
assing more abruptly into the pedicel; sporules green. the , Allegha 
Modinehia! (Eu.) 
17. O. Britchii, Brid. Very closely allied to the last two species ; from 
No. 15 it differs in its less crisped leaves, and deeper-colored nie capsule ; 
tee row of cellules. — ‘White Seisaaaaa, N. Hampshire, Oakes: 
