AM JUNGERMANNIACEAE 
1.6 mm. long by .4-1.5 mm. wide,* concave ventrally with the 
obtuse apex more or less deflexed, or nearly plane, the inner 
margin surpassing the stem ; carina slightly arcuate ; ventral lobe 
about one fourth the size of the dorsal, subquadrate, now and then 
a little elongated in a direction parallel to the carina, appressed to 
the dorsal lobe throughout or lightly inflated toward the base, 
subobtuse or acute, the inner superior angle free and somewhat 
incumbent upon the stem ; leaf-cells 16-24 и, the walls distinctly 
thickened at the angles: рагоісоиз : perigonial leaves 2—4 pairs, 
immediately subtending the 9 bracts, ventricose at base, the ven- 
tral lobes obtuse, 14-14 the size of the dorsal: ventral lobes of 
the 2 bracts subequal to the dorsal or one half as large, obtuse: 
perianth obconic or elongate-obconic, 1. 8— 3 mm. long Бу.7-1.2 mm. 
in maximum width, strongly compressed, bilabiate, the lips entire 
or slightly repand : capsule prolate-ellipsoidal or obovoid, .0-1.3 
ПОПА Х .45-—.55 mm., ou mm.; spores subglobose, 
30-38 и, finely granulate-papillate ; elaters 160-210 их 6-9 p. 
On branches and trunks of trees in moist or deeply shaded 
places (the species inhabits rocks also, but has not yet been found 
11 such situations in California); Berkeley, Fruit Vale (Miss Byx- 
bee); near Olema, Marin Co.; near Mendocino (707); Eureka 
(917) and Blue Lake (1015), Humboldt Co.; collected in California 
by Dr. Kellogg and probably also by Dr. Bolander, though we 
have seen no specimens of the latter’s collecting. 
It seems to us to be doubtful whether Radula Krausei Steph. 
(Bot Jahrb. 8: 97. pl. 3. £ ro. 1886)—at least as represented 
d Hep. Am. 149, а portion of which, we understand, was sub- 
мемен " Herr Stephani before its distribution—can be satisfac- 
torily distinguished from К. complanata. If we are not mistaken, 
the Supposed distinctive characters of Radula Krausei pass quite 
imperceptibly into those of the Pacific coast R, complanata, which, 
we believe, cannot be well separated from the European plant. 
34 PORELLA Г. Sp. PL 1106. 1753. Ех pill Hist, Muse. 
We i. Lindh, Act. Soc. Sci. Fenn 9: 335. О. 
Pellincinia Raddi, Atti Soc. Ital. Sci. Mod. 18:—(7): 1818. 
Mem. Mat. е Fis, Soc. Ital. Sci, Мод. 18: 18. 1920 
оре near Salem by Jack and Leiner. In the Californian specimens 
А complanata—as well as in the North American plant in general—the 
narily a little longer than broad. 
