The English flora - SeaweedAfrica

112 HEPATICiE. [Jungermannia.
Hedge-banks and moist heaths, frequent. Fr. March, Apr.—A deli-
cate species, of a pale yellow-green colour, very cellular, the leaves remote,
their segments sometimes patent. Balls of yellow gemma; are
produced at the extremities of the barren shoots, which soon dissolve, as
it were, and disappear.
.
23. J. byssdcea, Roth, (Byssas-like Jungermannia); stem
procumbent branched in a stellated manner, leaves subquadrate
obtusely bifid the segments acute, fruit terminal, perianth oblong
plicate, the mouth toothed. Roth, Cat. Bot. v. 2. p. 158.
Hook. Br, Jung, t. 12. Lindenb. Syn. Hepat. p. 78 J. divaricata,
E. Bot. t. 2463.
Heathy places, in dry and exposed situations. Fr. Apr, May.—
very minute species, and appearing, to the naked eye, like some byssoid
or confervoid plant, rather than a Jungermannia ; it is too of a dark
brown colour, and its fructification is terminal, by which character it
may be known from the preceding. Mr. Wilson has observed the
perianth to be double ; that is, an outer one is occasionally formed by
the union of the perichastial leaves, as in J. incisa and some others.
24. J. connivens, Dicks, (forcipated Jungermannia); stem
procumbent branched in a stellated manner, leaves orbicular
concave with a lanceolate notch at the extremity, fruit terminal
upon proper short central branches, perianth oblongo-ovate in-
flated, the mouth ciliated. Dicks. Cr. Fasc. A. p. 19. t. 11.
/. 15. Hook. Br. Jung. t. 15. E. Bot. t. 1304. Lindenb. Syn.
Hepat. j)' 91.
Wet bogs, particularly among Sphagnum and other semi-aquatic
mosses. Fr. Apr.— This is beautifully distinguished from J. hicuspidata,
with which it agrees in its mode of growth and texture, by the
singular curvation of the segments of the leaves towards each other in
a forceps-like manner, by the swollen, much ciliated perianths, and the
more divided perichcetial leaves.
25. J. curvifolia, Dicks, (curve-leaved Jungermannia); stem
procumbent branched in a stellated manner, leaves roundisli
very concave deeply bifid the long acuminate segments singularly
incurved, fruit terminal upon short proper central branches,
perianth oblong subplicate, the mouth dentate. Dicks.
Cr. Fasc. 2. t. 5. /. 7. E. Bot. t. 1304. Hook. Br. Jung. t. 16.
Lindenb. Syn. Hepat. p. 9 1
On moist rocks and decayed wood, in alpine districts. Fr. March.
Leaves generally tinged with purple.
*** Leaves tri-quadrifid ; the segments equal.
—
A —
26. J. capitdta, Hook, (capitate Jungermannia); stem prostrate
nearly simple, leaves rotundato-quadrate the lower ones
bifid the upper ones collected into a head and tri-quadrifid,
fruit terminal, perianth oblongo-ovate subplicate, the mouth
contracted toothed. Hook. Br. Jung. t. 80. Lindenb. Syn.
Hepat. p. 92.
Cadnam bog and Lyndhurst Race-course, Hants, C. Lyetl, Esq. Dry
mountain rock, near Bantry, Ireland, Miss Hulchins. Fr. Spring.