1
HANDBOOK OF BRITISH. HEPATlC/li.
liali to oiic-third smaller than leaf, tumid at the
keel, nearly flat, margin subrotuud, unequally
sjrinulose, exterior surface echinate, cells very
minute, holioles none. Female flowers on short
branches, bracts similar to tlie leaves, but larger,
lobule more finely dentate, perianth oval to pyri-
forni, muricate, obtusely five-augled above.— Jálate
L fiS- 7)
Lejeunia hamatifolia, Hook., Bum.
1 hread-like, loosely branched ; leaves transversal,
concave, ovate, acuminate, entire,
decurved, complicate at the base ; st ipules few,
small, bifid ; involucral leaves deeply two-
lobed, serrate ; perianth pentagonal, with
costate wings.
Jungennannia hamatifolia. Hook. Br. Jung,
t. 5 1 ; Eng. Bot. t. 2592. Lejeunia hamatifo
lia, Dum. Comm. 1 1 1 ; Gott. and Rab. Exs.
2 15) 4 7 6 ; Carr, and Pears. Exs. 7 5 ; ^ Cooke
Hep. f. 149.
On trunks.
Growing in small crowded green patches.
Stems two to three lines to | inch long, very
slender, thread-like, flexuous, procumbent, imbricate
or creeping, each irregularly once or twice
divided in a forked manner. Leaves rather close,
seldom imbricate, bifarious, alternate, erect and
spreading, formed of two unequal lobes, of which
the upper the largest, convex, ovate, acuminate at
the extremity, where it is often curved, usually
downwards (fig. 29), margins entire or serrate;
lower lobe half the size of the upper, which it
resembles in .shape, involute, with the margin
rarely slightly serrate. Colour pale
green ; perichaetial leaves nearly twice
the size of the cauline ones, two
to each calyx, which they embrace
at the base. Stipules small, ovate,
acutely cleft half way clown into two
sharp equal segments, the margins
entire. Calyx ovate or obovate, distinctly
ribbed, with five prominent,
and acute angles, nearly to the base,
mouth contracted, generally elevated
and tubular, cut into sharp fine teeth.
Capsule spherical, white, membra- 29.
nous, cleft half way. Elaters bispiral.
Lejeunia ovata, Bkks., Tayl.
Stems creeping, branched, subterete ; leaves
vertical, imbricate, incurrent, auriculate ;
larger limb plane, ovate, acute, lobule saccate ;
involucral leaves two- lobed ; st ipules small,
distant, bifid ; perianth obovate, apex acute,
five-angled.
Jungermannia ovata, Dicks. PI. Crypt . III.,
t. 8, t. 6. Jungermannia scrpyllifolia ¡3. ovata,
Hook. Br. Jung. No. 42. Lejeunia ovata,