lip
;isf, stti;
i:ïi t
2. 0 . H a llian um , Sulliv. & Lesq. Plants very small and
slender, in loose floating dirty green sparingly divided tufts :
leaves distant, loiig-linear, gradually tapering to a blunt apex ;
dorsal wing descending to the middle; areolation loose, in
broader ovate angular colls, narrower toward the borders : flowers
terminal on long branches : calyptra longer, descending to below
the orifice of the capsule, split on one side; capsule longer-
pedicellate, oval-oblong, with the borders of the orifice flat ; lid
conical-rostrate, slightly inclined, nearly as long as the capsule ;
teeth long, entire, not cleft and without a divisural line, narrowly
lanceolate, obscurely articulate, yellow, attached at a
distance below the orifice.—Aust. Muso. Appal, n. 108; Sulliv.
Icon. Muse. Suppl. 43, t. 28.
Hab. On decayed wood in wells, Illinois (E. Hall), fertile; on shaded
rocks, New Jersey (Austin), sterile.
S u b t r ib e II. LEÜCOBRYEÆ.
Plants whitish, spongy like Sphagnum, soft when moist,
brittle when dry, densely cespitose. Leaves close, composed,
except on the borders, of two or three superposed layers of
large porous chlorophyllose cells separated by a layer of intercellular
simple narrow chlorophyllose ones. Calyptra large,
whitish. Capsule, peristome and operculum as in Dicranum,
or the pieristome of 8 short broad lanceolate teeth.
27. LEUCOBRYUM, Hampe. (PI. 2.)
Capsule, peristome and lid as in Dicranum. Flowers
dioecious.
1. L. v u lg a re , Hampe. Ramification dichotomous and
fastigiate : leaves oblong-ovate, half-clasping at base, lanceolate,
tubulose from the middle upward : capsule oblong-ovate, with
a distinct substrnmose collum, slightly gibbous below the orifice,
small, chestnut-color, black when old, plicate-furrowed when
dry ; lid long-snbulate-beaked, curved downward. —- Linnæa,
xiii. 42. Dryum glaucum, Linn. Spec. PI. 1118. Dicranum
glaucum, Auct. Oncophorus glaucus, Bryol. Eur. t. 97 and
98. Leucobryum glaucum, Schimp. ; Sulliv. Mosses of U.
States, 23.
Hab . Roots of trees, mossy damp places in woods, borders of swamps;
not rare. Fruiting in winter or early spring.
2. L. m in u s, Sulliv. Plants more slender, scarcely half as
long as in the last species : leaves shorter, more crowded :
capsule smaller and pedicel shorter. — Mosses of IT. States, 24.
L . vulgare, var. minus, Hampe, 1. o.
Ha b . Roots of trees in swamps, more generally on the ground in dry
woods.
Fruiting from June to August, according to latitude. The time of the
ripening of the fruit is the most marked difference between tliis and the
preceding species.
3. L. sediforme, Muell. Plants with few branches : leaves
very short, densely imbricate, subsquarrose, exactly eight-
ranked, lanceolate-acute, very concave, entire, margined to
above the middle; perichætial leaves much longer and narrower,
long-exserted, convolute : capsule long-pedicellate, short,
slightly strumose. — Syn. 1. 75* Mitten, Journ. Linn. Soc. xii.
111.
Ha b . Florida (E. Palmer).
28. OCTOBLEPHARUM, Hedw.
Plants densely cespitose. Leaves thick; costa broadly enlarged
at base. Calyptra dimidiate. Capsule erect. Teeth of the peristome
8, short, broadly lanceolate, pale yellow, diajihanous.
1. O. alb id um , Hedw. Stem-leaves coriaceous, recurved
when dry, broadly margined, Ungulate-oblong, obtuse or apiculate,
denticulate at the apex, unequally alate at base : capsule
oval, short-pedicellate, erect ; lid plane at base, obliquely subulate
beaked.—;Musc. Frond, iii. 15, t. 6; Muell. Syn. 1. 86;
Mitten, Journ. Linn. Soc. xii. 109.
Ha b . Florida; not rare.
SuBTEiBE III. CERATODONTEÆ.
Plants cespitose. Leaves linear-lanceolate, subulate, clasping
at the base, spreading to every side or distichous, strongly costate
to the apex ; areolation elongated and pellucid at the base.
Capsule ovate, erect or inclined, on a long slender pedicel.
Teeth of the peristome bifid to near the base ; segments long,
equal, strongly articulate, or shorter and irregularly divided.