660 
MU SC I. (mosses). 
with an apophysis. Peristome double, the exterior a solid mem¬ 
brane of elongated cells, or numerous distinct moniliform teeth; 
the interior a white plaited cone-shaped membrane. Lid minute, 
conical-cylindrical. Inflorescence monoecious : antheridia naked, 
axillary. (Named for the early botanist Buxbaum.) 
1. B. apliylla, Haller. Stems short, scarcely 1" high, bulb¬ 
like and buried in the ground, covered with minute membranous ovate 
ciliate leaves; pedicel 5^ — in length, tuberculate. — Exposed 
places, New England and New York ; very rare. 
32. BIPHTfSCIUUI, Weber & Mohr. Diphyscium. 
Calyptra conic-mitriform. Capsule terminal, immersed, ovate- 
ventricose, oblique at the base. Peristome double; the exterior 
16 minute crenatures ; the interior a white plaited cone-shaped 
membrane. Lid conical. Inflorescence monoecious: sterile fl. 
gemmiform, terminal. (Name from bis, twice , and c^vo-kt], some¬ 
thing inflated , from the wide separation of the two membranes of 
the ventricose capsule.) 
L D. foliosnm, W. & M. Stems short (1" high); lower 
leaves ligulate, upper ones ovate-lanceolate, somewhat laciniate at the 
apex, with a long excurrent nerve ; capsule very large for the size of 
the plant, slightly pedicelled. — Shady woods, on moist rocks, rare. 
Bartramiace^:. 
33. BARTRAHIIA, Hedwig. Bartramia. 
Calyptra cuculliform. Capsule terminal, globular, unequal at 
the base, furrowed. Peristome double ; the outer of 16 lanceolate 
teeth ; the inner a membrane divided into 16 tw^o-cleft divisions. 
Lid small, depressed-conic. Inflorescence various. (Named for 
John Bar tram, the earliest North American botanist.) 
1. B. poiniformis, Hedw. Stems elongated, fork-branched, 
branches fastigiate ; Leaves spreading , Linear, serrate, crisped when 
dry, the nerve excurrent; sterile and fertile fl. together.— Woods, on 
moist banks; grows in large cushion-like patches, of a light-green 
color, 3*-4 f high. 
2. B. itliypliylla, Bridel. Distinguished from No. 1 by i* s 
straight leaves icith white and shining half-sheathing bases, and monce- 
cious inflorescence ; sterile fl. axillary. — New England. 
3. B. font fill a, Bridel. Stems much elongated ; branches 
short; clustered ; Leaves oval, pointed or elongated-lanceolate , often 
turned to one side, secund, serrate, the nerve extending to the apex 
