128 JUNGERMANNIACEAE 
Jungermannia Star&ii Funck ; Nees, Naturgesch. Eur. Leberm. 
35-215, 225 1836. 
Cephaloziella divaricata Schiffn. ; Eng. & Prantl, Nat. Pflanzen- 
min FOF TOO. 
mall, green, olivaceous, or nearly black, sometimes 
tinged with rose-color, closely caespitose or laxly creeping among 
mosses, prostrate or ascending, eflagelliferous ; stem stout for the 
size of the plant, 2-10 mm. long, sparingly branched, about 7 ог 
8 cells in thickness, the cortical in 14-22 series, not different from 
the interior or a little smaller, root-hairs often rather abundant: 
leaves small, scarcely longer than the diameter of the stem ог 
twice as long, subquadrate or rotund-quadrate, .o8-.18 mm. in 
length, .08-.2 mm. in width, distant or subimbricate, nearly trans- 
verse, bifid to the middle ‘or a little below, the lobes triangular- 
ovate, acute, subacuminate, or nearly obtuse, divergent or subcom- 
plicate, entire, slightly repand, or now and then with a single small 
tooth on one side or the other; leaf-cells subquadrate, minute, 
10—16 и, subopaque or pellucid, the walls thin or somewhat t ick- 
ened especially at the angles, cuticle smooth or minutely grant- 
late; stem-apex and margins of the apical leaves sometime 
gemmiferous: underleaves wanting, or present in the younger 
parts, entire and subulate or lanceolate, or sometimes broader and 
emarginate or bifid: dioicous: androecium terminal or median, 
cauline or rameal, the perigonial leaves in several pairs, concavo 
appressed-imbricate, commonly a little larger than the ordinary 
leaves, less deeply and more acutely lobed : archegonia terminal on 
the main stem or on an elongated branch: bracts in three pairs : 
or 3 times larger than the leaves, bilobed or rarely trilobed, usually 
distinct dorsally but commonly highly connate with the bracteole, 
the lobes acute or acuminate, denticulate, subspinulose, ог nearly 
entire, often hyaline at the apex ; bracteole similar, outer bracteoles 
two, somewhat smaller than the corresponding bracts and less 
deeply cleft ; perianth fusiform-ovoid to linear, .8-1.4 mm. Х.2-4 
mm., prismatic, 3-6-angled, mostly hyaline toward the apex че 
шека purplish below, somewhat contracted at the denticulate 
or subentire mouth, the wall unistratose. 
: On logs, charred stumps, rocks, and moist soil, commonly 48% 
ciated with mosses and other hepatics. 
Frequent in the Coast Range region. Clarendon Heights 
San Francisco ; Mill Valley, Mt. Tamalpais, and Lake Lagunitas 
Marin Co.; Cazadero, Sonoma Co.; Mendocino (544, 619, 669) | 
North Fork of the Little River, and Ukiah (741), Mendocino Co.; 
Eureka (956) and Blue Lake (995), Humboldt Co.; Mt. Diablo, 
