70 MUSCI. (MOSSES.) 
somewhat obtuse, serrulate ; costa ceasing near the apex.— Wooded hill-sides, 
on the ground. (Eu.) 
20. H. diversifolium, Bryol. Europ. Dicecious; very near the pre- 
ceding, but has a more simple ramification, obtuse turgid branchlets, and leaves 
more res sely imbricating ; those of the stem and branches deltoid-ovate, acumi- 
— —— . of the branchlets ovate-obtuse. — Sandy soil ; + hilly por- 
ns of Southern Ohio, Lesquereur. (Eu.) 
21. H. aie Schwegr. Dicecious ; stems prostrate, with a somewhat 
fasciculate ramification; branches ‘aisicaens turgid, terete, obtuse, flaccid ; 
leaves densely imbricated, ovate from a broad auriculate base, apiculate, very 
concave, serrate ; costa extending more than half-way. — On the ground, mostly 
in hilly and wooded districts. — A large species, with golden yellow foliage: 
does not well associate with the four preceding species in a natural arrange 
ment. 
§8 RHYNCOSTEGIUM, hehe “pis — Stems prostrate, irregularly branched, 
more or less compressed : leaves ovate an ovate-lanceolate, unicostate or shortly bi- 
areolation ect owt ted ana capsule oval and inelined, 
or tins and cern 
oh ii. eas Hedw. Moneecious; leaves pale green, membra- 
us, lax, bifariously directed, spreading, ovate lanceolate, acuminate, serrulate, 
cxatate beyond the middle; capsule oblong, cernuous.— On the ground, in dry 
woods, forming thin strata ; occasionally scadousca. the branches becoming 
cylindrical. 
- iH. romney W.P. Sch. Dicecions; stems and obtuse branch- 
es very flat, profusely rooting underneath their whole length; leaves bright 
green, shining, —— distichously imbricating, broadly ovate-lanceolate, ser- 
sh costate ; capsule gibbose-oblong ; annulus na . depres- 
sum, James, in - Amer, Acad. 1855.) —Dry woods, in doen; thin mats, 
near the ground, on stones and roots of trees, — Fruit ra 
24. Hi. ruscifoérme, Weis. Moneecions ; branches somewhat arcuate, 
fasciculate, elongated, very slightly couipecsead - leaves oblong-ovate, shortly 
acuminate, sharply serrate, sometimes subsecund, costate nearly to the apex ; 
ee oval, rather inearved ; annulus large. — Mountain rivulets: frequent. — 
A rather rigid species, with lurid green foliage of a firm texture. (Eu.) 
§ 9. RAPHIDOSTEGIUM, Bryol. Europ. — Stems prostrate, siren) 
ramification irregular : leaves subsecu secund, oblong-l ortly bicos- 
tate ; the margins reflexed ; areolation minute, linear, ner the =a 5 cellules 
ac of the basal angles Biba es inflated : capsule oblong, suberect or cer- 
nuous: operculum subulate : small spec. 
25. A. demissum, W Moneecious ; stems — elongated, spar- 
ingly branched ; leaves ohare shining, rather Jax, narrowly acuminate, 
costate ; capsule narro narrowly elliptical, horizontal, cernuous. (H. Rugelianum, 
Bryol. Europ.) — Mountainous districts. — Usually grows in thin flakes, on the 
inclined faces of moist exposed rocks: variable. When much shaded, and on 
