148 JUNGERMANNIACEAE 
imbricate, erect or subappressed, slightly convex, somewhat acute, 
with fewer and larger teeth and bearing at the base several long . 
decurved often compound cilia ; leaf-cells subquadrate-oval, more 
elongated toward base, 15-40 и, with conspicuous trigones, cu- 
ticle minutely roughened : gemmae at apex of stem, of one or two 
cells, oval or ellipsoidal, 15-25 иж 15 и: dioicous, 4 and 9 
plants in the same tuft: androecium terminal or often interrupted ; 
antheridia 2-6, ellipsoidal or obovoid, on stalks of about their 
own length or longer, accompanied by very numerous, branching, 
capillary, or leaf-like paraphyses; 2 bracts scarcely modified 
er smaller, saccate, densely imbricate, with subequal inciso- 
dentate lobes: perianth oblong, more rarely obovate, 2-3.5 mm. 
X 1.5-1.8 mm., ciliate-lacinulate or doubly ciliate-dentate at 
mouth : capsule oblong-ovoid, brown, seta 3-10 mm. long ; spores 
10-12 и, punctulate ; elaters bispiral, obtuse, contorted, 100-175 
ИХ 8-10 p. 
Ехвісс. Hep. Bor.-Am. 10. 
Common in the Coast Range Mountains, north of San Francisco, 
on logs and stumps of the Coniferae, especially of Sequoia semper- 
vires—-more rarely on the bark of living trunks. 
Redwood Сайоп, Marin Co. (Miss Edith S. Byxbee); Dun- 
can's Mills (1193) and Turner's Сайоп (1 194), Sonoma Co.; Men- 
docino (596), Little River (648, 684), and Half-Way House (727), 
Mendocino Co.; Eureka (911, 928, 938, 984), Humboldt Co. 
Frequently with sporogonia. Apparently closely confined to the 
Pacific Coast, ranging as far northward as Alaska. Specimens 
from Nova Scotia, Ontario, and Lake Superior, referred to this 
species by Mr. Pearson * are probably something else. Scapania 
Bolanderi is strongly marked by the rigid oblong-obovate ventral 
lobes and by the coarsely dentate dorsal lobes, furnished at the 
base with long curved often branched cilia. These cilia often lie 
close to the stem and are covered by the dorsal lobe next below, 
so that a careful separation of the leaves from the stem is usually 
necessary for a satisfactory demonstration of this character. 
Тһе plant when growing in tufts of Dicranum is sometimes 
TN We have rarely met with gemmiferous conditions. The 
original specimens were collected in California by Dr. Bolander, 
and were distributed by Mr. Austin as-no. 19 of the Hepaticae 
Boreali-Americanae. 
^ 222 + EU 
* List of Can. Hep. 13. 1890. | 
