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8. D. flagellare, Hedw. Tufts compact, bright green;
stems short, producing from the axils of the upper leaves small
slender fugacious branchlets {flagellai) with very small appressed
bracteal leaves: stem-leaves lanceolate-subulate, concave,
denticulate at the apex, subsecund, the upper twisted when
dry ; costa broad, compressed : capsule long-oylindiical, striate,
somewhat plicate when dry. — Muso. Frond, iii. 1, t. 1 ; Bryol.
Eur. t. 68 ; Braithw. 1. c. 155, t. 23, C.
Var. su b flu itan s, Aust. Stems immersed, longer, slender ;
leaves more distant. — Bull. Torr. Club, vi. 344.
Hab. Decayed trunks in deep woods, very common. The variety in
depressions of flat rocks; New York, sterile {Austin).
9. D. fulvum. Hooker. Plants dusky yellow or brownish
green, loosely cespitose; stems solid, curved down at base:
leaves spreading, flexuous or falcate-secund, tufted at the apex,
críspate when dry, narrowly ovate at base, gradually long-seta-
ceons-subulate, canaliculate to the denticulate apex: capsule
short-pedicellate, cylindrical-oblong, brown or black, plicate
when old; annulus double, narrow. — Muse. Exot. t. 149. D.
interrnptum, Brid. ; Bryol. Eur. t. 69 ; Sulliv. Mosses of U. States,
22. Syrrhopodon (?) Paiiei, Aust. Bull. Ton-. Club, vi. 74.
H a b . Shaded sandstone rocks in hilly regions; not rare.
Judo-ing from the description of the author, Syrrhopodon Bauei
differs^from this species in being less robust, the leaves shorter and less
crowded, the areolation less enlarged, the costa not as strong, ®
flowers terminal. These are the characters of the young plants of D. ful vum,
the leaves being shorter, less crowded, and of a more delicate texture.
The male flowers are always terminal, only pushed aside each succeeding
year by the new innovations, the tnfted leaves at the tops of the innovations
giving the stems an interrupted appearance.
10. D. longifolium, Hedw. Tufts soft, pale or whitish
green, glossy; stems arched and geniculate, slender, slightly
radiculose : leaves long, falcate-secund, rarely spreading, open
at the short lanceolate base, constricted into a very long sub-
tnbulose-subulate point, serrate above on the borders and the
back; inner perichætial leaves convolute and sheathing to near
the apex: capsule cylindrical, erect or slightly curved, not striate,
yellowish brown; pedicel reddish in the lower part- —
Muso. Frond, iii. 24, t. 9 ; Bryol. Eur. t. 72 ; Braithw. 1. c. 158,
t. 24, B. .
Var. s tric tiu s , Aust. Stems longer, more rigid, immersed ;
leaves shorter, erect.—Bull. Torr. Club, vi. 344.
Var. p lum o sum , Lesq. Hypnoid-plumose in aspect ; tufts
very loose ; stems mostly simple, ivithout radicles : leaves longer,
narrower, open, flexuous or falcate, denticulate on the borders,
rugose on the back. — Dicranodontmm nitidwn, James, Bull.
Torr. Club, vi. 34.
Hab. Rocks and bark of living trees, tlie beech especially, m subalpine
reliions; not rare in the Adirondack mountains. Var. strictius, in
depressions on flat rocks, with the variety of D. flagellare {Austin) ; var.
plumosum, at Dixville Notch, New Hampshire, under a dam (James).
11. D. a lb ic a u s , Bruch & Schimp. Plants densely cespitose
yellowish green when moistened, whitish when dry ; stems
stout and very long, thickly tomentose: leaves erect or
slightly turned to one side, oblong at base, narrowly lanceolate-
acuminate, nearly tubulose by the incurving borders ; costa very
broad, enlarged at base and filling the wliole leaf except a narrow
border ; outer perichætial leaves short-sheathing at base,
abruptly lanceolate-subulate and broadly costate, the innei long-
sheathing, ecostate : capsule long, cylindrical, smooth ; beak of
the lid as long as the capsule, narrowly subulate ; teeth large,
densely striolate, papillose above, connate at base, bifid and perforated
to the middle; annulus simple, large. — Bryol. Eur.
t. 73. Campylopus Shaioii, Wils.
H a b . Subalpine and arctic regions ; Northwestern America (Douglas).
* * * Plants o f large size, radieulose-tomentose to the hase
o f the highest innovations : leaves long, more or less curved,
lanceolate-suhidate, glossy ; areolation o f the hasilar angles
broadly quadrate: flowers dicecious; male buds often produced
on small annual plants from the prothallium and
mixed in the felt o f radicles: capsule long, cernuous,
arcuate.
12. D. e lo n g a tum , Schwaegr. Plants in compact yellowish
green tufts ; stems very long and slender : leaves open-erect
or subsecund, lanceolate-subulate from an enlarged oblong base,
very entire, smooth ; costa narrow, vanishing in the apex ; cells
of the areolation very narrow, enlarged, quadrangular at t e
angles: capsule cernuous, gibbous-ovate, substriate, fun owe
plicate when empty ; pedicel pale, comparatively short ; lid pale,
loner-subulate, rostrate from a conical base ; annulus simple, narrow
.-S u p p l. 1. 171, t. 48; Bryol. Eur. t. 76. D. Macouni,
Aust., Coult. Bot. Gaz. 11. 96, sterile specimens.
I.