694 (94) HEPATIC. (LIVERWORTS.) 
8. J. barbata, Schreber. Stems procumbent, sparingly branched ; leaves 
Prsind inter cs 3—5-lobed, the sinuses obtuse and undulate; lobes obtuse, 
acute, or mucronulate, variously directed ; amphigastria (when present) broad 
entire or 2-toothed ; perianth angularly plaited to near the apex, the mouth den- 
ticulate. — Hilly eteies: on the ground, rocks, &c.: variable. (Eu.) 
9. J. Fi Wikicacitesie: Weber. Stems ascending, flexuous by repeated inno- 
vations from below the s sree leaves crowded, erect-spreading, rather saccate 
at base and quadrate, 2-cleft, ; the lobes acute, incurved; ex- 
terior involucral leaves mmnid serrulate, the inner smaller; perianth oval, rather 
club-shaped, the obtuse apex plete, the mouth fringed. — Alleghany Moun- 
ins. oe u.) 
0. J. imcisa, Schrader. Stems prostrate, thick, rather re rooting co- 
piously ; ikaves densely cowde, somewhat quadrate, waved, 2-6-cleft, the 
segments unequal; periant r obovate, the mouth piaiiea, denticulate. — 
Damp, shaded places, on Wales wi — A small, pale green species. (Eu.) 
1. J. intermé €dia, Lindenberg. Stems prostrate, almost simple ; leaves 
roun roa omine e 2-cleft; the upper ones crowded into s,and 3-4-cleft ; 
involucral leaves 3—4-cleft, slightly serrate, connate at the ast perianth short, 
Sia iti r, the mouth plaited, denticulate.— On the ground.—A small 
species. (Eu.) 
* * * Leaves nearly orbicular, undivided ; amphigastria different or obsolete. 
12. J. scutata, Weber. Stems procumbent; leaves half vertical, emar- 
ginate-2-toothed ; the teeth straight and acute; involucral leaves 2~3-toothed ; 
amphigastria large, ovate-triangular, 1 -2-toothed on the margin near the bases 
perianth obovate, the mouth plaited, denticulate.— Old logs, &e.— A minute 
species. (Eu.) 
13. J. Schradéri, Martius. Stems creeping, flexuous; leaves elliptical- 
orbicular, ascending ; outer involucral leaves large, elongated, entire or emargi- 
nate, spreading at the tens the inner omens more or less laciniated ; amphi- 
gastria obsolete; perianth oval-obovate; the mouth plaited-lobed, its lobes 
iliate. (J. ii Miche. pesado logs, &c.; common. — Foli 
often dar! (Eu.) 
14. J. say Hook. Stems erect, nearly simple; leaves orbicular, 
with | areole ; amphigastria broadly subulate ; perianth oval, compressed 
at the mouth, truncate and 2-lobed. —Bogs; moun untains of New England.— A 
large species, with purple foliage. (Enu.) 
15. J. cremulata, Smith. Stems prostrate, branched ; leaves orbicular, 
ascending, those towards the perianth larger and bordered by large marginal 
cells ; perianth obovate, compressed-4-angled, the mouth much contracted, 
toothed. — Margins of ditches, Mobile, ‘Alsen. (Eu.) 
% * * * Leaves — aang (t. ¢. folded together): the involucral 
nth oblong, obtuse, plaited. 
16. J. pairs aces iz ee ascending ; dorsal lobe of the leaves 
small, acute ; ventral lobe concave, acute or 2-toothed. — Boggy places, decayed 
wood, &e. (Eu.) 
