FFÎI'
;{ i>
longer basilar teeth ; branoh-leaves broadly ovate, short-acuminate,
dark green ; perichætial leaves broad, spreading at the
point; capsule turgid-ovate, subhorizontal, pale brown; lid
conical, acute; segments nearly entire; annulus none. — Muse.
Exsicc. n. 66; Iledw. Sp. Muso. 263, t. 67. II. prolif&rum,
var. umbratum, Wahl. llylocomium umbratum, Bruch &
Schimp. Bryol. Eur. t. 488.
I I a b . Deep pine woods on high mountains ; summit of the Adirondack
and Catskill Mountains (Lesquereux).
187. H. Oakesii, Sulliv. Plants in wide depressed swollen
6ii'ty green tufts ; stems continuous by annual arcuate innovations,
distantly pinnately ramulose; branches and branchlets
compressed-foliate : stem-leaves loose, broadly ovate, open,
those of the branches glossy, loosely incumbent, ovate-oblong,
all concave, more or less long-acuminate (the borders recurved
to near the apex), irregularly and coarsely serrate above, simply
costate to the middle; paraphyllia laige, bipinnately
divided ; perichætial leaves ecostate, sheathing to the middle,
there squarrosely reflexed, narrowed to a long sharply serrate
point: capsule globose-ovate, turgid, on a long slender arcuate
pedicel ; operculum convex-conical, short-rostr,ate ; annulus
none ; peristome of the last. — Gray’s Manual, 673 (1848), Mem.
Amer. Acad. n. ser. iv. 173, t. 5, and Icon. Muse. 159, t. 102.
Hylocomium fimbriatum, Brucli & Schimp. Bryol. Eur. t. 489.
llylocomium OaJeesii, Schimp. Coroll. 139. llylocomium
Pyrenaicum, Lindb. 1. o. 37.
H a b . White Moimtains [Oakes, James),
188. H. brevirostre, Ehrh. Tufts large, swollen, somewhat
rigid, pale or dark green; stems solid, arcuate, erect or,
drooping, irregularly or fasciculately pinnate-ramulose, covered
with minute paraphyllia : stem-leaves spreading, squarrose or
subsecund, broadly obcordate-ovate, abruptly and narrowly
apiculate, decurrent and half-clasping at base, irregularly sulcate,
narrowly bicostate, serrulate above, those of the branchlets
ovate-lanceolate, all glossy ; perichætial leaves half-sheathing
at base, subulate-acuminate, squarrose-reflexed, serrate at
the apex : capsule horizontal, on a pedicel arcuate above, turgid-
ovate or oblong, sulcate when dry; operculum long-conical,
acuminate or subrostrate; teeth orange; cilia subappendiculate;
annulus narrow. — Muse. Exsicc. n. 85; Schwaegr. Suppl.
iii. 1., t. 225“- llylocomium brevirostrum, Bruch & Schimp.
Bryol. Eur. t. 493.
H a b . Summit of the Alleghany Mountains {Sullivant & Lesquereux),
fertile; deep ravines, Pennsylvania and New Jersey {James, Austin),
sterile.
SuBGENus XXVIII. HYLOCOMIUM.
Plants long, two or three times divided, distantly and irregularly
pinnate-ramulose, with innovations from the apex and
from the lateral branches. Leaves squarrose or spreading-
secund ; paraphyllia none. Capsule turgid-ovate or subglobose.
— llylocomium, Schimp.
189. H. squar rosum, Linn. In wide soft bright green
tufts; stems slender, flexuous, distantly ramulose, the branchlets
unequal, acute, flexuous: stem-leaves crowded, divaricately
squarrose from the erect concave base, broadly ovate, narrowly
lanceolate-acuminate, with a short costa or none ; bi-andi-leaves
smaller, less squarrose, the terminal spi-eading, distantly and
obscurely dentate, not sulcate ; areolation dilated, reddisli brown
at b.ase; jierichætium squarrose, the inner leaves subulate-
acuminate, serrulate at ajiex : capsule abruptly horizontal,
turgid-ovate or subglobose, reddish-brown, inclined when dry ;
pedicel twisted to the right ; operculum coiivex-conical, apiculate
; segments split between the articulations ; cilia three ; annulus
double.—^Spec. PI. 1127. Hylocomium squai-rosum, Bruch &
Scliimp. Bryol. Eur. t. 492.
H a b . Grassy places and borders of woods; Alleghany Mountains near
Summit Portage, Pennsylvania (Lesquereux); Oregon {E. Hall); rare,
^nd found only sterile.
190. H. triquetrum, Linn. Tufts high and wide, rigid,
yellowish or light green ; stems woody, reddish, long, robust,
erect, nearly simple or fastigiately branching, pinnately ramulose
; br.anchlets unequal, short and rigid, or longer and fl.agolli-
form, sometimes radiculose at the apex: stem-leaves close,
subsquarrose, rarely secund, deltoid-obcordate and decurrent at
base, lanceolate above, sulcate, narrowly bicostate to the middle,
serrate at the apex, scarious, loosely areolate at base ; leaves of
the branchlets narrower and gradually smaller upward ; perichætium
squarrose : o.apsulo horizontal by a curve of the pedicel
under its base or inclined, ohlong, narrowed at the orifice when