MUSCI. (MOSSES.) (75) 675 
branches sparingly ramulose; cauline leaves subcomplanate, decurved at the 
apex (those of the branches secund-falcate), ovate-lanceolate, minutely serrulate 
above; capsule cernuous, incurved-oblong ; operculum convex- -conic. — Wet 
rocks on the ground, forming loose “tte masses, New York: rare. — Resem- 
bles No. 50, and large forms of No. 47; but its ramification and mode of growth 
are quite different. (Eu.) 
§16. RHYT{DIUM, Sulliv.— Stems serie ; the main divisions robust, rigid, 
leaves 
arcuate-ascending, irregularly pinnate, with short subuncinate branchlets : 
ovate-lanceolate, attenuated, often secund and ee undulate-rugose, semicos- 
ate ; areolation ecuous: capsule cylindrical, arcuate-horizontal : 
mpact, linear, fl 
operculum conic, shortly Gastaaes: calyptra large. 
4, Hi. rugosam, Ebrh. pst mal stems erect, 2’-3! high; foliage 
yellow or fulvous. — Grows in large elastic cushions, mostly i in exposed places, 
on limestone rocks : not uncommon ; oe andi rare in (Eu.) 
§17. BRACHYTHECIUM, Bryol. Europ.— Stems prostrate, rarely suberect ; 
eres ares — Sia eemt ane occasionally mugeapeet leaves erect-patent, 
, the margins below recurved ; areo- 
ition "rhomboid, more or be ‘casita; costa — half-way, or continuous : 
ovate or oblong, cernuous or subetect: operculum convex-conic: pedicel 
smooth or scabrous. 
* Pedicels smooth. 
5. HI. nitens, Schreb. Monteciotis; stems tomentose, suberect, 3/-5! 
long, interruptedly and eakepieiad ramulose; leaves aT aauiee shining, 
elongated-lanceolate, attenuated, ———. sulcate-plicate ; costa light, subcontin- 
ihn: capsule oblong, cernuous ; operculum short, c ‘eieianiiaiie ap ‘enibati 
nulus large; pedicels 1/-2! Lotte: —Sphagnous swamps, Northern and 
States. (Eu.) 
56. Hi. salebrésum, H Hoffm. Moneecious ; stems 3/—4/ long, prostrate, 
irregularly branched ; leaves moderately acumina a rounded base, sub- 
serrulate, slightly striate ; areolation broader and more lax near the base ; -eosta 
slender, vanishing about midway; capsule gibbose-ovate, turgid, cernuous ; an- 
nulus small; pedicels 6//-10/ long ; | pikenaetial ate subsquarrose. — On the 
ground, decayed logs, rocks, &e.; common and variable. — Foliage yellowish- 
green and shining. (Tab. V.) (Eu. 
57. Hi. lwetum, iy aer like vic = — a — 56; 
but more slender, with a 
inflorescence. — enine situations. 
58. WH. acuminatu omg sor Dicecious ; resembles the last species ; 
wi’ is every way smaller prostrate, closely entangled; the branches 
ue 
crowded, ascending ; jeies aus spreading, ovate-lanceolate, serrulate near 
point, costate beyond the middle, the margins broadly recurved ; 
ground and decayed logs, in moist, shady places. — Prominent among its many 
varieties are var. RUP{NCOLUM : leaves shorter; branches subjulaceous ; capsule 
