HEPATICE. (LIVERWORTS.) 95 
17. J. obtusifolia, Hook. Stems ascending, simple; lobes of the leaves 
oblong, obtuse or acute, minutely denticulate, the ventral scymitar-shaped ; the 
dorsal smaller, oblique. — Dry, sag situations, on the groun 
18. J. albicans, L. Stems ascending: the dorsal lobe of the leaf ovate, 
the ventral larger, oblong-ovate, soni ar-shaped, both with a broad pellucid 
line in the middle; perianth obovate, cylindrical, the mouth plicate-dentate. — 
Moist banks, in hilly districts. (Eu.) 
25. SCAPANIA, Lindenberg. (Tab. 22.) 
Fructification terminal. Involucral leaves 2, larger than the cauline. Peri- 
antn compressed parallel to the plane of the stem, the month entire or ciliate- 
ters 
eri 
Stem-leaves complicate - 2-lobed ; the dorsal lobe smaller. Amphigastria none. 
BEY probably from oxandvy, a shovel; from the shape of the lobes of the 
ves.) 
. S. nemordsa, Nees. Ste crowded; leaves ciliate- 
toothed, each lobe convex, sbciee 3 shi tees gull oktaas twice as large 
as the other.— Common on moist banks, &c. — A variable species, : to 3/ long, 
pale yellow, green, or purple: texture of the leaf rather firm. (Eu 
2. S. undulata, Nees & Montagne. Leaves ciliate-denti ae 
loose, aia: ; lobes rounded-trapezoidal, the upper half the size of a ay 
except at the summit of the stem, where they are equal; of thin and flaccid tex- 
ture (green or purple.) — Mountainous districts. (Tab. 22.) (Eu.) 
3. S. breviflora, Tayl. (in Lond. Jour. Bot. 1846.) Stems ascending ; 
leaves dentate, deeply 2-lobed, lobes rotund-triangular, the upper one much 
narrow base surrounded by lanceolate, serrate — involucral leaves long as ~ 
the perianth.— Near Philadelphia, Dr. We 
26. PLAGIOCHILA, Nees & Montagne. (Tab. 22.) 
Fructification terminal or lateral. Involucral leaves 2, larger than the cauline. 
Perianth compressed at right angles to the plane of the stem; the mouth trun- 
cate, entire or ciliate-toothed. Calyptra membranaceous. Capsule oval. Ela- 
ters with two spiral fibres. Antheridia covered by small and ventricose-imbri- 
cated perigonial leaves. Stem-leaves with the dorsal margin decurrent and re- 
flexed, often turned to one side (whence the name, from mAdytos, sideways, and 
xerds, ars 
ne none: orifice of the perianth toothed-ciliate. 
1 Pm ioe o ees & Montagne. Stems creeping, the branches as- 
cending ; leaves remote, patie spreading, obovate-wedge-shaped ; the dorsal 
pex ‘ose-toothed ; perianth lateral. — 
) 
2. P. asplenioides, Nees & Montagne. Leaves somewhat imbricated, 
