124 JUNGERMANNIACEAE 
thin-walled, pellucid, somewhat thick, quadrate-hexagonal, be- 
coming elongated toward base, 30-60 и; underleaves usually 
wanting except in association with the 9 bracts: polyoicous: an- 
droecium median, terminal, or occupying an entire branch, the 
perigonial leaves much like the others but more concave, usually 
closer, and sometimes with a small accessory tooth on the dorsal 
margin near the base: archegonia terminal on a very short or 
much elongated branch: bracts about three pairs ; the inmost 2-3 
times longer than the leaves, sometimes slightly connate at the 
base, bifid to the middle, the lobes mostly lanceolate-acuminate, 
entire, repand, or with one or two teeth near the Базе; bracteole 
similar: perianth linear-subfusiform, thrice longer than the bracts, 
1.8-2.5 mm. x .5 mm., at first tricarinate-prismatic, later often 
becoming nearly terete below, remaining trigonous toward the 
constricted denticulate ог setulose mouth, its wall unistratose 
throughout unless at the extreme base: calyptra thin: capsule 
cylindrical-oblong, .6-.75 mm. x .3-.4 mm.; spores purple. 
On decaying wood, moist soil, and in swamps among 1108555. 
Mendocino (Dr. Bolander ; Howe, 719) and North Fork of the 
Little River (610, 615, 652, 659, 661, 689), Mendocino Co.; 
near Eureka (016, 963, 1031). 
An examination of Jungermannia extensa Tayl. from “ Observa- 
tory Inlet, N. America, Dr. Scouler, 1834” in the Taylor collec- 
tion, now incorporated in the Gray Herbarium, Cambridge, Маз» 
shows, we think, no satisfactory and reliable grounds for its 
separation from С. bicuspidata. Spruce (On Cephalozia, 45) empha- 
sizes only the “ cladogenous perichaetia " as distinguishing 1 
from C. Lammersiana, but we find the 9 branches in the origi 
material often much elongated as in C. Lammersiana ; flagella are 
not wholly wanting ; the leaves are commonly bifid to below the 
middle, but they can be matched in this respect by Europea? 
specimens as also in respect to the apiculus of the leaf-lobes. 
Most of the Californian specimens are dioicous and agree closey 
with the original of Taylor's Jungermannia extensa. 
The specimens which we once reported (Erythea, 4: 5 
1896) from California under Ше name Cephalozia bicuspidata be- 
long with C. media but have somewhat thinner perianths than 
15 normal with that species. 
0. 
