390 
pressed, fleshy, composed of two strata of cells near the base; 
antheridia in the axils of smaller leaves crowded in spikes. 
Sporophyte a short-stalked oval capsule, 0.8 mm. long, en- 
veloped until maturity in a thin calyptra; spores about 9 y in 
diameter. 
The type locality of Austin’s plant was in the White Mount- 
ains of New Hampshire; that of Spruce’s C. crassiflora in the 
Pyrenees. It occurs on the mountains of New England and in 
Canada, and according to Pearson extends westward to British 
Columbia; also reported from California (Howe). It is likely to 
be confused with C. media on account of its thick perianth, which 
in section is found to be made up of three strata of cells at base, 
and two strata if the section is made higher up; C. media is 
smaller and dioicous, with strongly decurrent leaves and probably 
has a much wider range in both latitude and altitude. C. pleniceps 
is also reported from various parts of Europe. 
9. CEPHALOzIA FLUITANS (Nees) Spruce. on Cephalozia, 50. 1882. 
Jungermania fluitans Nees, in Syll. Ratisb. 129. 1823. 
Cephalozia obtusilobata Lindb. Bot. Notiser, 1872: 164. 1872. 
Gametophyte a slender elongate axis, growing over Sphagna 
or semi-aquatic; leaves distant, oval, ovate or oblong, some- 
what cuneate at base, bilobed one-third to one-half to the 
base, with a narrow acute sinus and usually obtuse lobes; leaf- 
cells hexagonal, 40-50 y» in diameter: dioicous; perianth on 4 
short branch, about 3 mm. long, oval, cylindric, trigonal only at 
the apex; involucral leaves rather smaller than the ordinary stem- 
leaves, bifid to the middle, with acute lobes. Sporophyte an ob- 
long or oblong-cylindric capsule, on a short seta ; spores minutely 
tuberculate. = 
Growing in wet places, in Sphagnum bogs or semi-aquatic 1) — 
the margin of pools, New Jersey and New England to Labrador 
and northwestward. It has been distributed by Austin in Hep. 
Bor. Am. 35 (as /ungermannia inflata var. fluitans) and in Hep. 
Amer. 154, 173. 
10. CEPHALOZIA DIVARICATA (Sm.) Dumort. Hep. Europ. 89. 1874- 
Jungermannia dwvaricata Smith, Engl. Bot. p/. 779. 1800. 
JSungermannia byssacea Roth, Fl. Germ. 3: 387. 1800. 
Jungermannia confervoides Raddi, Mem. Soc. Mod. 18: 29-— 
pl. gof. Ie 1820. | 
