Calif, il. 378. G. orbicularis, James, Bot. King Exp. 403 ; not
Bruch & Schimp.
Hab. On schistose rocks and granite boulders, Mission Dolores, California
[Bolander, Brewer, Lapham); in Nevada, in the Bitterroot Mountains
of Western Montana and Idaho, and on Kettle River, British America
(IFaisoJi). . -u ,
The areolation, texture and conformation of the leaves m both the
varieties are the same as in the normal form; the tufts only are smaller
and the hair-points generally shorter. But Schimper remarks (Syn. 2d ed.,
264) that he has received specimens from Norway with smaller tufts and
the leaves shortly hair-pointed. Austin describes the calyptra of G.
Jamesii as cucullate-campanulate, slightly unequally lobate at base. It is
indeed large and cucullate, but merely undulate not distinctly lobate at
base, or the same as in G. montana. The teeth are generally truncate by
maceration in var. brachyodon; but in well-preserved specimens they
have exactly the characters of the European form. The greater and only
marked difference is in the shorter lid, but this is not a constant character,
as in some of the well-preserved American specimens the lid is
obtusely rostrate and only slightly shorter, as it is shown in Bruch &
Schimper’s figm-es of the species.
27. G. a lp e s tris , Schleich. Plants in compact glaucous
green tufts : leaves gradually larger from the base of the stem
upward, lanceolate from an oblong base to a nearly smooth pellucid
hair-point, concave and canaliculate ; borders plane ; outer
perichætial leaves broad, the inner shorter and narrow : calyptra
large: capsule oblong-cylindrioal, emergent on a short
straight pedicel ; lid convex, conical-obtuse ; teeth nearly
entire, somewhat lacunose toward the apex ; annulus compound,
persistent. — Nees & Hornsch. Bryol. Germ. ii. 139, t. 21 ;
Bryol. Eur. t. 251. Guembelia alpestris, Hampe, 1. c. ; Muell.
Syn. i. 772.
Hab. On rocks at Fort Colville and Pend d’Oreille Lake [Lyall);
Utah {Watson).
Mitten remarks (Journ. Linn. Soc. viii. 20) that all Lyall’s specimens
are very dark green, but otherwise the same as the European form.
# # * Calyptra cucullate-lohate : dicecious.
28. G. u n ico lo r, Grev. Plants widely cespitose, dark
green or black ; stems slender, naked and decumbent below :
leaves erect-spreading, imbricate when dry, linear-lanceolate
from an ovate base, blunt or obtuse or thicker at the apex .
calyptra long-rostrate, mitriform-cucullate : capsule erect, oval-
oblong, emergent on a thick somewhat long pedicel ; lid long-
beaked, straight or curved ; teeth orange, very closely articulate,
long-lacerate or split to below the middle, erect when dry ;
annulus very broad, of a triple row of cells. — Scot. Crypt. FI.
t. 123 ; Bryol. Eur. t. 260.
Hab. Eocky Mountains [Drummond) ; Bear River Gap, White Mountains
(James); Nipogon River, Lake Superior (A. Smith); Thunder Bay
(Macoun).
4 7 . RACOMITRIUM, Brid. (PI. 2.)
Plants generally of large size, widely and loosely cespitose,
scarcely radiculose, branching by dichotomous innovations,
simple and fastigiate or fasciculate by lateral more or less unequal
branchlets. Leaves close, nearly equal, not tufted at the
top of the stems, long-lanceolate, muticous or piliferous, canaliculate
concave, recurved on the borders ; cells close, minutely
quadrate in the upper part of the leaves, sinuous, linear
and long in the lower part. Flowers dioeoious. Fruit acro-
genous or from secondary short branchlets. Calyptra conical
at base and mitriform-subulate. Capsule oblong-cylindrical,
narrowed at the orifice, mostly erect. Lid narrow, subulate.
Teeth of the peristome long, irregularly 2-3-cleft to below the
middle or divided into two filiform nodose nearly equal segments,
erect, rarely spreading when dry. Annulus compound,
revoluble.
SUBGENFS I. CAMPYLODRYPTODON.
Plants regularly dichotomous, prostrate. Cells minute and
rounded above, linear toward the base : costa narrowly two-
winged above on the back. Pedicel arcuate. Teeth long, bifid
to near the base.
1. R. p a te n s , Hueben. Plants olive-green, fragile, in wide
loose flat tufts : leaves open, long-lanceolate, muticous ; costa
subpercurrent: capsule mclined or pendent, emergent, oval,
yellowish brown, red at the orifice ; lid straight or obliquely
rostrate ; teeth purple, papillose ; membrane orange ; annulus
very broad. — Muso. Germ. 199 ; Schimp. Syn. 226. Bryum
patens, Dicks. Fasc. Crypt, ii. 6, t. 4. Trichostomum patens,
Schwaegr. Suppl. i. 151, t. 37. Bryptodon patens, Brid. Bryol.