; i.. te
i
i .3 i
the articulations, bipartite when old. Annulus none. Spores
very small.
1. 0. dendroides, Web. & Mohr. Leaves ovate-ohlong,
lanceolate, concave, bisuloate, serrate at the apex, slightly
decnrrent and hollowed at the basal angles, costate to below the
apex, bright green and glossy ; perichætial loaves thinner, more
loosely areolate, entire, the inner sheathing : capsules numerous,
ovate-ohlong, chestnut-color; lid rostr.ate-acuminate, remaining
attached to the columella ; teeth united into a cone when damp,
incurved between the segments when dry : spores olive green._
Iter. Suec. 96 ; Bryol. Enr. t. 437. Hypnum dendroides, Linn.
Sj). I’l. 1128. Leskea dendroides, Hedw. Spec. Muso. 228.
Neckera dendroides, Muell. Syn. ii. 122.
H a e . AVet prairies, borders of ditches, etc. ; very common in Europe,
rare iu America. British America {Drummond) ; Fort Colville (Lyall);
AVhite Mountains (Oakes); Canada (Macoun); Sand Lake, New York
(C. II. Deck).
2. 0. Am eric an um , Brid. Closely allied to the last:
leaves long-decurrent and more broadly auricnlate at base,
coarsely serrate above, round-areolate at the broad auricles;
perichætial leaves erect, longer acuminate. capsule longer,
cylindrio.al, erect or slightly curved; operculum longer and
abruptly rostrate ; teeth longer and abruptly long-subulate from
a lanceolate base, dark orange.—Muso. Recent. Suppl. ii. 45;
Sulliv. Mosses of U. States, 66, and Icon. Muse. 151, t. 97.
Neckera dendroides, var. Americana, Muell. 1. c.
H a b . Shady woods in damp places ; decayed logs, roots of trees, etc.
3. 0. R u th en icum , Lindb. Mode of growth of Climacium;
branches pinnate or bipinnate; branchlets filiform,
slender: leaves of the primary stems squamiform, clasping the
stem, broadly ovate, obtuse, apiculate, very entire, strongly
costate or ecostate ; branch-leaves lanceolate from an enlarged
base, serrate from below the middle ; costa thick, dark, dentate
at the apex; perichætial leaves broadly ovate at base, long-
cuspidate, with borders undulate or erose above : capsule cernuous
and horizontal, oblong-cylindrioal, arcuate, inflated at the
neck ; pedicel comparatively short, reddish ; operculum broad,
long-conical, acute ; teeth broadly lanceolate, hyaline-margined ;
segments broad, as long as the teeth, cleft between the articulations.
— Act. Soc. Fenn. x. 248 ; Sulliv. Icon. Musp. Snppl. 77,
t. 58. Hypnum Ruthenicum, Weinm. Bull. Soc. Mosc. xviii.
2. 485.
H a b . Sitka (Bischoff).
127. ORTHOTHEOIUM, Bruch & Schimp.
Plants either small, prostrate and diversely branching and
ramulose, or large and fastigiately ramose with few branches
and branchlets. Leaves 8-ranked, close, subsecund or erect-
spreading, more or less densely imbricate when dry, long-
lanceolate, narrowly acuminate, very entire, ecostate; perichætium
loosely vaginate. Flowers dioecious. Calyptra very
small, fugacious. Capsule long-pedicellate, suberect, oval or
oblong, straight or slightly incurved. Operculum short-rostrate
from a convex base. Teeth of the peristome narrowly lanceolate,
subulate, yellowish, hyaline, distantly articulate ; segments
linear, narrow, as long as or longer than the teeth ; intermediate
cilia short or none. Annulus large.
1. O. ru fe sc en s, Bruch & Schimp. Plants tall, in soft
irregular reddish yellow tufts; stems with dichotomous branches
and few branchlets : leaves erect-open and subsecund, lanceolate,
long aud narrowly acuminate, sulcate : capsule yellowish brown ;
membrane and intermediate cilia short. — Bryol. Eur. t. 469.
Hypnum rufescens, Dicks. Crypt. Fasc. iii. 9, t. 8. Leskea
rufescens, Schwaegr. Suppl. i. 2. 178, t. 86. Stereodon nifes-
cens, Mitten, Journ. Linn. Soc. viii. 40.
H a b . AA^et rocks, Davis Strait (Taylor).
Although No. 221 of Dmmmoncl is reported to be this species, we cannot
find in four sets of his collection a specimen agreeing with Schimper’s
description of the European form. All appear referable to O. chryseum.
2. O. rube llum. Branches erect, with few branchlets: leaves
ovate, concave, with a flexuous apex, revolnte on the borders,
very shortly hicostate; cells long, the alar indistinct; perichætial
leaves ovate-lanceolate. — Stereodon ricbellus, Mitten, 1. c.
H a e . Davis Straits (Taylor). Also in the Eocky Mountains (Drummond),
according to Mitten, mixed with Catoscopium nigritiwi (n. 5.3).
A small moss, with the habit, appearance, and color of O. intricatum,
Bruch & Schimp., but differing in its almost exactly ovate leaves, with a
short sometimes discolored apiculus, the margins revolute, and the areolation
composed of cells which are twice as wide. — (Mitten.)