i l l
' :
enlarged in the niiddle from a narrow base and contracted to
the blunt point, entire : calyptra twisted, hirsute at the apex :
capsule erect or inclined and slightly curved, obovate, cylindrioal,
narrowing at base to a short pedicel ; lid obliquely rostrate ;
teeth white and hyaline, excepting the medial dark orange line.
— Sulliv. Mosses of TJ. States, 41, and Icon. Muse. 73, t. 46.
Catharinea crispa, James, Journ. Acad. Philad. 1855, 445.
H a b . Grassy banks of small streams, and boggy ground, near Camden,
New Jersey.
7. A. p a r a lle lum , Mitt. Dioecious : plants loosely cespitose,
dark green ; stems simple, short, solid, erect : leaves halfopen,
incurved when moist, the upper longer, lingulate-lanceolate,
sharply dentate (not margined) from below the middle,
marked on the back by small thin tooth-like processes parallel
to the costa, which is also 2-3-lamellate on the back, and the
lamellæ dentate ; lower leaves shorter, ohlong, more obtuse ;
perichætial leaves ohlong, convolute at base, gradually narrowed
and lanceolate : male plants more slender, the flowers oiip-shaped :
capsule long and subcylindrical, slightly arcuate, contracted
under the orifice, ventricose below ; surface verrucose. — J ourn.
Linn. Soc. viii. 48, t. 8 ; Sulliv. Icon. Muso. Suppl. 54, t. 38.
Hab. Grand Côté, Rocky Mountains (Drummond); mixed witb tbe
following.
Witb tbe size and babit of A. undulatum, distinguished by tbe capsule
more ventricose below, and by tbe eliaracters indicated above.
9 4 . OLIGOTRICHUM, DC.
Stems simple, from subterranean stolons. Leaves long,
linear-lanceolate, incurved on the borders, not margined, subtubulose
at the apex, distantly serrulate, incurved-hooked when
dry ; costa subterete and naked at base, gradually dilated upward
and covered with numerous undulate sinuous and crenulate
lamellæ. Flowers dioecious, the male cup-shajied, proliferous
; paraphyses partly filiform, partly spatulate. Calyptra large,
scarcely covered with erect hairs. Capsule erect, ovate-ohlong,
cylindrical, thin. Lid convex-conical, acuminate or long rostrate.
Teeth of the peristome thin, irregular.
1. O. aligerum, Mitt. Dioecious: plants loosely cespitose
or gregarious, black, radiculose toward the base ; stems short
and slender : leaves open or spreading, ohlong-lanceolate,
smooth, blunt-pointed, entire at base, short-dentate above, alate
on the back by longitudinal dentate lamellæ ; costa percurrent,
carinate, 5-7-lamellate ; areolation round-quadrate, distinct ;
perichætial leaves ovate, sheathing at base, erect, narrower and
subulate to the apex, with round pellucid areolation: male
plants shorter, proliferous from the centre of the flowers : calyptra
with a few erect hairs on the upper part : capsule of the
same form as in the last species. — Journ. Linn. Soo. viii. 48,
t. 8 ; Sulliv. Icon. Muse. Suppl. 55, t. 39.
H a b . Grand Côté, Eocky Mountains (Drummond).
2. O. L y a llii, Lindb. Plants robust, cespitose, dirty yellow ;
stems fastigiately branching from the middle, plicate, naked at
base, densely foliate above : leaves broader, oblong, clasping at
base, open, narrowly lanceolate-acuminate above, densely lamellate,
convex and smooth on the back ; borders incurved, distantly
serrate from the middle ujiward ; inner perichætial
leaves with a long convolute base and a short acumen : male
flowers unknown : calyptra fugacious, with few appressed hairs,
split on one side : capsule on a long flexuous reddish pedicel,
slightly inclined, cylindrical-oblong, ventricose below, bi])licate
above, plicate-rugose at base when empty ; lid broadly conical
at base, subulate-rostrate. — Obs. Polytrich. in Faun. Flor.
Fenn. ix. 102. Polytrichadelphus Byallii, Mitt. Journ. Linn.
Soo. viii. 49, t. 8 ; Sulliv. & Lesq. Muse. Bor.-Am. Exsicc. (ed.
2), n. 322.
H a b . British Columbia (Lyall); Rocky Mountains, Colorado, in pine
woods (E. Hall); high mountains of California (Bolander).
9 5 . PSILOPILUM, Brid.
In aspect and mode of growth like Oligotrichum. Leaves
oblong, sheathing at base, open, erect above, ohovate-ohlong,
very concave, muticous at the slightly incurved apex ; borders
irregularly crenulate above ; lamellae of the costa suhundulate,
gradually narrowed, thin and disappearing toward the base;
upper areolation minute, subquadrate, long-rectangular at the
sheathing base. Calyptra very narrow, smooth. Capsnle
ovate-gibbous, incurved, laterally compressed, stomatose at
base, rugulose when dry, the orifice narrow. Lid short, convex