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Involucral bracts two, twice the size of ordinary
leaves, ovate-oblong, emarginate. Perianth obovate,
compressed, mouth broad, bilabiate, curved to one
side. Calyptra campanulate. Capsule dark brown,
spores reddish-brown, granular, 14/1. diam. Andraecium
terminal. Perigonial leaves closely imbricate,
bilobate. Antheridia usually solitary.— (Plate j ,
fig- 47-)
Plagiochila spinulosa, Dicks., Dum.
Stem erect, rather branched, leaves semivertical,
obovate, recurved, dentately-spinu-
lose ; perianth lateral and axillary, rounded-
oblong, truncate, mouth spinulose.
Lichenastrum pinnulis alternis. Dill. Muse, p
489, t. 79, f. \c\.. Jungermannia spinulosa, Dicks
Crypt . I I ., p. 1 4 ; Hook. Br. Jung. t. 1 4 ; Eng
Bot. t. 2228. Plagiochila spinulosa, Dum. Hep
Eur. p. 45 ; Cot t . and Rab. Exs. 500 ; Cooke
Hep. f. 32 ; Carr, and Pears. Exs. No. 8'
Carr. Br. Hep. p. 60, t. iv., f. 14.
var. 8 microphylla. Stems filiform, densely
pulvinate, all the leaves minute. Carr, and
Pears. Exs. No. 90.
var. e procumbens, Carr, and Pears. Exs.
No. 223.
var. ß punctata. Carr. 1. c. Smaller, densely
cæspitose, repeatedly ramose, ult imatebranches
flagelliform ; leaves punctate, loose ly imbricate,
divergent , roundish-ovate, from a
contracted base, apex and ventral margin
spinose-dentate ; perianth axillary, obcordate,
truncate, bilabiate, alæ dist inct ly toothed, apex
densely spinulose. —Jungermannia punctata,
T a y lo r Trans . Bot. Ed. I., 179.
Form * flagellifera, Carr. Most of the
branches flagelliferous, intertwined, fastigiate,
naked or microphyllous, leaves not much
broader than the stems, obovate - cuneate,
patent, recurvo-convex, scarcely decurrent, 2-3
denta te ; amphigastr ia frequent. — Plagiochila
punctata, T a y l . Lond. Jour. Bot., 1844, P- 3 7 ivar.
8 inermis, Carr. 1. c. C lo s e ly tufted,
shoots slender, leaves roundish-ovate, oblique
ly retuse, or bidentate at the apex, margins
recurved, most ly entire.
Either mixed with other hepaticæ, and mosses,
or forming dense cushionlike
tufts on rocks, or investing
the trunks of trees. Rhi zomes
creeping, entangled,
dirty brown. Stems upright
or inclined, reddish-brown,
simple or dichotomous, or innovant
from the axils of terminal
leaves. Shoots i to 4
inches, with distant or closely
imbricated alternate leaves.
Barren shoots nearly equal
114.
Leaves broadly ovate, or obovate,
throughout.
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