Var. p a rv u lum , Sulliv. 1. c. Plants of small size: leaves
narrower: capsule 8-striate.— O.pai-md-um, Mitt. Journ. Linn.
Soc. viii. 25. 0. Sturmii, Sulliv. & Lesq. Muso. Bor.-Am.
Exsicc. n. 117, in part.
Ha b . Dry rocks, in tlie middle districts; Ukiali, California [Bolander);
tlie first variety on limestome rocks along the Ohio River (Lesquereux);
tlie second in New York (Peck) ; the third in Pennsylvania (Porter) ; the
last in New Mexico ( Wright).
4. O. S tu rm ii, Hoppe & Hornsch. Tufts less compact,
greenish black or brown: leaves open and recurved when moist,
revolute on the whole margin, especially when dry, acutely
carinate; upper areolation densely papillose, the basilar rectangular
or vermicular, nodulose near the base, quadrate-equal
at the angles : calyptra very hairy: capsule immersed, oval,
short-necked, with 8 very obscure strite, slightly constricted
under the orifice when dry and empty, and there 8-costate,
smooth in the middle; teeth pale-yellow, not as distinctly
punctate as in the preceding, erect, slightly incurved when d ry ;
cilia none or rudimentary. — Regensb. Flora (1819), ii. 89;
Bryol. Eur. t. 209.
Hab. Rocks, Yosemite Valley (Rolander); Nevada (TFaisoji).
5. O. T e x a u um , Sulliv. Plants large, loosely pulvinate,
brown or blackish green : leaves loosely imbricate, erect-open
when dry, spreading-recurved when moist, deeply cariiiate-
costate or suhplicate from the middle to the apex, linear-lanceolate
; borders reflexed all around; upper areolation opaque,
punctiform, slightly papillose ; lower cells longer and oblong,
pellucid: calyptra long, covering the capsule to the base, very
hairy: capsule immersed on a short pedicel, oblong-obovate,
short-necked, distinctly 8-costate its whole length when dry;
lid with a short straight beak; teeth 8 and bigeminate, or 16
geminate and adjacent in pairs, whitish yellow; cilia 16, rudimentary
and rarely seen. — Mosses of H. States, 33, and Icon.
Muse. 53, t. 34; Sulliv. & Lesq. Muse. Bor.-Amer. Exsicc. n.
122 (excluding diagnosis).
Var. g lo b o sum , Lesq. Stems shorter: leaves erect when
moist: capsule shorter, globose, emergent upon a somewhat
longer pedicel, with a brown shining calyptra..— Mem. Calif.
Acad. i. 17.
Hab. Texas (Wright); New Mexico (Fendler); on rocks, California
(Bolander); Colorado (Wolf & Bothrock).
The species is much like O. Sturmii, but differs in the larger plants,
with longer narrower more recurved and spreading leaves, a more hairy
calyptra, a longer capsule prominently 8-ribbed throughout when dry, and
an inner peristome, though more or less rudimentary.
6 O. D o u g la s ii, Duby. Similar to 0. Texanum, differing
in tiie Laves distinctly revolute on the borders, the upper areolation
prominently papillose, the calyptra more enlarged at
base, the capsule exserted on a somewhat longer pedicel, the
lid lono-er-rostrate, and in the shorter and broader teeth without
triTces of cilia. — Genev. Soo. Phys. Mem. xix. 293, t. 1,
fig. 2.
* # Peristome double, the inner o f 8 cilia: capsule ribbed
when dry.
7. O. r u p e s tr e , Schleich. Plants long, loosely cespitose,
decumbent; leaves spreading, recurved when moist, strict,
rigid and imbricate when dry, ohlong-lanceolate, revolute or
involute on the borders; upper areolation very small, scarcely
distinct, the basilar narrowly rectangular, more or less vermicular
near the costa, minutely papillose on both faces : calyptra
campanulate, covered with yellow hairs: capsule emergent or
subemergent, .broadly ovate, decurreut into a short neck, faintly
8-striate, pale yellow when young, reddish brown when old,
truncate when dry or slightly constricted in the middle, 8-
ribbed in the upper part only; lid convex, short-beaked ; teeth
16, in pairs, long, close, distantly punctate, often perforated
along the dividing line, pale yellow, erect when dry; cilia
stout, of a double series of cells, nearly as long as the teeth,
yellowish. — Schwaegr. Suppl. 1. 2. 27, t. 53 ; Bryol. Eur. t. 217.
H a b . On rocks, Yosemite Valley (Bolander); Nevada (Watson);
Colorado (Wolf & Bothrock).
The species varies in its more or less loose or compact tufts, the stems
short or elongated, and the calyptra more or less villous. .It has the same
appearance as 0 . Sturmii and O. Texanum, the characters of the peristome
essentially separating the species.
8. O. B o la n d e ri, Sulliv. Plants shorter, cespitose, blackish
green : leaves closely imbricate, recurved-spreading when
moist, oblong-lanceolate, blunt at the apex; borders reflexed at
the base only; upper areolation round, angular or square,
histromatic, slightly papillose, loose and elongated-oval toward
the base; calyptra hairy : capsule half-emergent, oblong-oval,
8-costate under the orifice, short-pedicelled and obscurely