4c i
I (I
. 11*
f i r ' ’
It
compressed, subcircinate i j inch long, two
or three times inno v ant - fur ca te ; leaves
secund, roundish, ciliate-dentate, c losely imbricate,
erect ; dorsal margin straight,
s t rong ly recurved, ventral project ing backward,
so as to form a crest wi th the opposite
l e a v e s ; perianth short, oblong, s car ce ly e x ceeding
the involucral leaves, and like them
dense ly ciliate at the apex.
The typical form occurs— straggling amongst
moss or forming dense tufts (fig. i i i ) . Primary
shoots creeping, leafless, entangled. Secondary less
rigid,paler brown, ascending,simple or dichotomous,
innovant in older plants. Leaves bifariously imbricated,
alternate, horizontally patent, roundish,
obovate, or trapezoid, with a broad rounded or
truncate apex, dorsal margin decurrent, entire,
reflexed, ventral rounded,dentate, or ciliate, superior
aspect decidedly convex (fig. 112). Texture thin
and semi-pellucid. Amphigastria general but
distant and irregular, minute, subulate, bifid.
Inflorescence normally dioicous, sometimes autoicous
or with male and fertile shoots springing from
the same stolon. Involucral leaves slightly larger
than those of the stem. Perianth laterally compressed,
from a narrow base, curved to one side.
Calyptra pear-shaped. Capsule ovate, purplish-
brown, lustrous. Spores spherical. Perigonial
leaves six to eight pairs, closely imbricate in
two rows. Antheridia in clusters of two to four,
greyish-green.
i Plagiochila interrupta, 2V., Dum.
Stem hor izontal ly branched, leaves imbr icate,
oval, repand, obtuse, quite entire, margin
plane ; perianth terminal, oblong, mouth
repand, crenulate.
Jungermannia interrupta, Nees Leb. I., 165.
Plagiochila interrupta, Dumrt. Hep. Eur. p. 44-
Gott. and Rab. Exs. No. 48, 136, 5 1 6 ; Cooke
Hep. f. 35 ; Carr, and Pears. Exs. No 86 •
Carr. Br. Hep. p. 52, t. 3, f. I I .
In mountain woods, on dry shady rocks.
var. p pyrenaica, S p ru c e Hep. Pyr . No. 9.
Pedinophyllum pyrenaicum, Spr . Trans . Bot.
Edin. III., 200. Bar ren stems humifuse, serpen^
t ine-flexuous, hor izontal ly branched ; leaves
ovate-oblong, obliquely truncate, two, three,
or four dentate; perianth obovate, mouth
acutely dentate.
Tufts broad, depressed, attached to the surface
of rocks. Stems creeping, flexuous, simple or
megulany branched, olive-brown, purplish near the
base, brittle when dry. Leaves
elliptic, ovate, or subquadratc,
distichous, alternate, horizontally
imbricate; apex rounded and obtuse,
retuse, or emarginate, dorsal
margin scarcely decurrent (fig.
113). Amphigastria usual on the --j.
barren shoots, minute, 1-3 partite, segments subulate.
Inflorescence autoicous. Fertile shoots rare