640 (40) MUSCI. (MOSSES.) 
like, broad-ovate, deeply cut and long-ciliated on the margins, met costate, loose- 
ly reticulated. (Named after J. C. Buxbaum, an early German i): 
1. B. aphylla, Haller. Stem and —— having the appearance of a 
minute hairy bulb, many times smaller than the capsule with its short cylindri- 
cal apophysis ; pedicel rather stout, 7//-10/ high, tuberculate. —New England 
and New York; rare. (Tab. III.) (Eu.) 
42, DIPHYSCIUM, Weber & Mobr. ne 
Calyptra small, conic, entire at the base, scarcely covering tl ted-coni 
operculum. Capsule large, ovate, oblique, ora star: he immersed. Peri- 
stome double (?); the exterior a very —— slightly so tate ring. ed rudi- 
mentary; the interior as in mf aumia. I e flow 
rminal, gemmiform; antheridia numerous, pee ted. — Small pees like 
mosses, annual or biennial, the sessile capsule forming the principal part; stem 
very short, its leaves lingulate, spreading, entire, costate, thick and fleshy; the 
perichzetial leaves much larger, membranous, erect, lanceolate, an at 
N 
the point, the costa excurrent into a long serrulate awn. (Name from Ois, 
twice, and J apres a vesicle ; vast = separation of the thecal and ea 
membranes giving f one vesicle within another.) 
1. D. Glieiak Web, & Mohr. Whole plant 3"-—4! high: — Clayey or 
barren soil; not unfrequent in hilly districts. (Tab. II.) — u.) 
Tripe XVIII. eS 
43. ATRICHUM, Beauv. (Tab. IIL) 
alyptra narrowly cuculliform, naked, spinulose at the apex. Operculum 
hemispherical at the base, with a long slender ros . Capsule cylindrical or 
oblong, nearly erect, slightly arcuate, fain. Leet Peristome single: teeth 
32, short, ligulate, obtuse, incurved and adhering by their summits to the soo 
of the disk-like apex of the ante Inflorescence moneecious or dicecious 
male — == 2 ee aie ~ ” hal ” t Pgs een moda om dnd 
Mnium ; re 
leaves small below, much larger and elongated above, eee dry, of a a 
orig eine eee, Oe —reeeee the — ta bearing on its upper sur- 
ivative, and Opié, rptxéds, a hair, 
a 
in in allusion to the naked cady piv) 
1. A. undulatum, Beauv. Stems erect, mostly simple ; leaves long 
in hilly districts ; rare. — Moneecious : fertile flower terminal on a prolongation 
of the axis of the sterile flowers. (Eu.) 
2. A. amgustatum, Beauv. More slender than the preceding; leaves 
narrower, more densely reticulated, not denticulate below the middle, the costa 
with more numerous and broader lamellx.— Shady woods, and margins of 
swamps; common. — Dicecious: male flower terminal. (Tab. III.) (Eu.) 
