ill
13. O. Hallii, Sulliv. Æ Lesq. Plants small, loosely cespitose
; stems simple, divided by basilar innovations : leaves
spreading, linear-lanceolate, blnnt at the apex ; borders revolute
from the base to the middle ; u]iper areolation dense, with
round papillose cells ; perichætial leaves similar ; calyptra large,
slightly hairy, covering the capsule to its base : capsule subimmersed,
oval, on a short thick pedicel entirely covered by the
tnbe of the vaginule, distinctly 8-costate when dry and slightly
contracted under the orifice ; lid conical, apiculate ; teeth
whitish, in pairs, vermiculose ; cilia shorter, slender, fugacious.
— Sulliv. Icon. Muso. Sup])l. 63, t. 4-5.
H a b . On trees; Rocky Mountains {B. Hall).
14. 0 . so rd id um , Sulliv. & Lesq. Plants short, loosely
cespitose, brownish green : leaves close, spreading, the upper
open, erect, lingulate-lanceolate, gradually narrowed to the
apex, reflexed or revolnte on the borders, irregularly quadrate-
areolate and jtapillose in the upper ¡rart; basilar cells quadrangular,
longer and linear near the costa: calyptra slightly
villous : capsule immersed, obovate, defluent from a slightly inflated
short collum to a short pedicel, plicate-costate when dry,
enlarged at the orifice ; lid convex, short-beaked ; teeth bigeminate,
broadly perforate from the middle upward along the
dividing line ; cilia 8, smooth, nearly as long as the teeth, of a
double row of cells, enlarged at base. — Aust. Muso. Appal,
n. 168 ; Sulliv. Icon. Muse. Suppl. 67, t. 49.
H a e . On trees, generally in wooded swamps ; Massachusetts {Lesquereux,
James); New York (Austin).
15. O. K in g ia n um , Lesq. With the aspect of 0. lævi-
gatum, from which it differs in the leaves merely reflexed on
the borders, not revolnte, with the basal areolation longer and
narrower, the calyptra with thin scattered hairs, the capsule
scarcely emergent on a shorter pedicel, longer, cylindrical when
empty, the peristome double, the inner of 8 stout cilia, composed
of a double series of cells. — Mem. Calif. Acad. i. 18 ;
Sulliv. Icon. Muse. Suppl. 74, t. 55.
Hab . On rocks, near the Falls of the Yosemite (Bolander).
* * * Plants small, one c.m. long, or less.
16. O. Ohioense, Sulliv. <fc Lesq. Plants more or less
widely cespitose, yellowish green above, dirty brown within ;
stems about one c.m. long, branching by innovations : leaves
close, spreading Avhen moist, oblong at base, lanceolate, blunt
at the apex, revolute on the borders, smooth on both faces ;
areolation distinct, the upper cells small, round, the lower
larger, quadrangular near the border, gradually longer toward
the costa ; calyptra more or less hairy : capsule oblong-ovate,
very shortly pedicellate, immersed, slightly inflated at the
collum, defluent into the vaginule, pale yellow, pyriform-cam-
panulate and distinctly 8-striate when dry and empty ; teeth 8,
bigeminate, thickly punctulate ; articulations distant, 5 to 7 ;
cilia shorter than the teeth, of a double row of cells. — Muse.
Am.-Bor. Exsicc., ed. 2, n. 181 ; Sulliv. Icon. Muso. Suppl. 66,
t. 48. 0. Canadense, Sulliv. & Lesq. Muse. Bor.-Am. n. 121 ;
Sulliv. Mosses of U. States, 34.
Var. c itrin um . L e a v e s dark green, narrower : capsule thin,
yellow. — 0. citrinum, Aust., Muse. Appal, n. 170.
H a b . On trees; Ohio and Middle States, common.
Resembles the two following species, but it is a little larger and easily
known by the straw-colored capsule not constricted under the orifice, the
whitish calyptra, and the dirty reddish teeth.
O C a n a d e n s e , Bruch & Schimp. (Lond. Journ. Bot. ii. 661), based
on Drumm. Muse. Amer. n. 149 and 1.51, is not recognizable among the
specimens in onr sets of Drummond’s mosses, and remains a doubtful
species. It is characterized as differing from 0 . patens in its smaller capsules,
longer pedicels, and rusty red-colored teeth.
17. O. fa lla x , Schimp. Plants very small: leaves oblong
to above the middle, lanceolate to a sharply acute point ; cells
of the upper areolation round, inflated, the basilar broadly
rectangular, sinuous ; perichætial leaves shorter : calyptra neatly
naked, broadly campanulate: capsule immersed, subglobose
with a short neck, abruptly enlarged from the base and truncate-
oblong when dry, marked with 8 orange-colored striæ ; teeth
8, higeminate, not easily separating, yellowish, reflexed when
dry ; cilia 8, short, whitish yellow, of simple cells or of a double
row of cells near the base only. — Syn. 264. 0. pumilum,
Schwaegr. Suppl. i. 2. 22, t. 50, in part (figs. 6, 11); Bryol.
Eur. t. 211.
Var. tru n c a tu lum , Aust. Capsule narrower, oblong, cylindrical
when dry; cilia as long as the teeth. —Bull. Torr.
Club, vi. 344. ^ . ,rr
H a b . The variety at the base of old buildings, Illinois {Iiall) ; rare.