MUSCI. (MOSSES.) (79) 679 
6, emend., but is a on plant, the leaves narrower and entire, with a much 
son costa. The true Swartzian H. fluviatile of Wils. Bryol. Brit.; Bryol. 
Europ. fase. 62-64, is a — _ flaccid plant, the ramification not pinnate. 
H. noterophilum not i. Pig var. on allisclausze, il Brit. 
(H. Vallisclause, Brid. ), but differs in the inflores 
7 riparium, Hedw. Moncecious; stems as elongated, the di- 
visions distantly and  eeapiomataly. branched ‘eaves usually remote, bifariously 
directed, ovate and oblong-lanceolate, acumina , entire, costate half-way ; thin ; 
areolation minute, nent chomboldal 5 ; ee ebiong, cernuous. — Common 
about swamps ; also on stones in ri ite variable.. (Eu.) 
79. Hi. p Wailition Bryol. Europ. Staminate, ees and her- 
maphrodite flowers in clusters, and on the same stem; stems procumbent or 
ascending, irregularly and span aa leaves aah spreading, sub- 
squarrose, long and subulately acumina m a concave, cordate, or ovate- 
lanceolate base, the point vattendaly directed, rior half-way, or more or less 
distinctly bicostate at the base, scarious ; areolation minute, linear ; the cellules 
the decurrent angles enlarged, oblong ; capsule oblong, cernuous, broadly 
ate. — Swamps, British America, Drummond.— Very much like H. stel- 
latum, but somewhat smaller, and not so harsh a species. 
80. MH. Lescitrii, Sulliv. (Muse. Bor.- -Amer. No. 350.) Moncecious ; 
cernuous, broadly annulate ; operculum acutely conic.— On wet rocks, Tallu- 
lah Falls, Georgia, Lesquereux. Also Brattleborough, Vermont, F rost. 
§ 21. PLAGIOTHECIUM, Bryol. Europ. — Stems procumbent or erect, spar- 
ingly branched ; branches usually subcompressed or complanate, elongated, assurgent, 
mostly simple: leaves ovate and ovate-lanceolate, more or less unsymmetrical, ecos- 
tate or shortly bicostate ; areolation elongated-rhomboidal, or linear and flecuous : 
capsule oblique, oulindrical, ne curved, sometimes oblong, erect, and equal. 
Inflorescence monecious. 
. fone tes , L. Stems prostrate, 2’—3/ long, stoloniferous ; 
a obliquely ovate- pri see shortly bicostate, rea t, the margins nar- 
wly reflexed; areolation narrow and elongated ; capsule oblong inclined ; 
us 
but it is 08 with an upright growth, and an erect regular and narrowly 
annul according ‘wall with Plagiothecium letum, as given in Bryol. 
Europ. ey except “bey its inner peristome is ciliolate, and even in this respect not 
from specimens received from W. P. Schimper under mie name. (Eu.) 
i i | ovate-lance- 
olate, long-acuminate, subsecund, serrulate, shortly —— decurrent ; cel- 
lules at the basal angles large and inflated, elsewhere much smaller, elongated- 
