CEPHALOZIA 125 
2. CEPHALOZIA PLENICEPS (Aust.) Lindb. Medd. Soc. Faun. et Fl. 
Fenn. 0: 158. 1883. 
Jungermannia pleniceps Aust. Proc. Acad. Nat. Sci. Philad. 
1869: 222. 1869. 
Cephalozia crassiffora Spruce, On Cephalozia, 40. 1882. 
Pale green, sometimes lightly tinged with brown, densely caes- 
pitose, now and then suberect and forming compact cushions: 
stem subramose, rather stout, about 8 cells in diameter, flattened 
dorsally, the cortical cells large and pellucid, branches occasion- 
ally stoloniform : leaves obliquely orbicular, móstly .3—.55 mm. in 
diameter, strongly concave, assurgent, often vertical-connivent, 
subimbricate, more rarely distant, scarcely or not at all decurrent, 
bifid about one third their length, the sinus obtuse, less commonly 
acute, the lobes acute or the ventral occasionally subobtuse, often 
more or less connivent ; leaf-cells quadrate-hexagonal, becoming 
oblong-hexagonal toward the base, rather large and thick, pellucid, 
thin-walled, 30-60 и: rudimentary underleaves rarely present 
toward the apex of the younger branches: monoicous (polyoic- 
ous ?): androecium median or terminal, dorsal lobe of perigonial 
leaves commonly with an incurved tooth or lobule near its Базе: 
? branch very short or somewhat elongated ; the inmost bracts 
bi- to quadri-fid, distinct or slightly connate with each other and 
With the bracteole, often bistratose at the base, the segments acute; 
bracteole usually bi-tri-fid ; perianth cylindrical-oblong, 2.3- 
2.6 mm. x .6-.9 mm., contracted at the plicate, denticulate mouth, 
carnose, of three layers of cells at the base and bistratose to the 
"ric or even for two thirds its length ; calyptra mostly unistra- 
ose, 
On the ground beside a stream, near Sisson, Siskiyou Co., 
stowing among Musci (Aulacomnium, etc.) and forming a com- 
pact turf. 
| Тће type specimen, from the White Mountains of New Hamp- 
shire (legit Oakes) is in the possession of Mr. W. H. Pearson. 
The Californian plant has a rather narrower and more fleshy per- 
anth than the original, the wall of this organ being in the former 
bistratose for two thirds its length, in the latter only about to the 
middle, Cephalozia cras siflora Spruce—ífrom the Pyrenees—an 
authentic specimen of which, also, we have seen in herb. Pearson, 
“ems to differ from the original C. pleniceps in scarcely anything 
but in having the perianth widest above the middle, while in both 
the New Hampshire and California plants the perianth is com- 
