BRITISH JUNGERMANNIiE. 
( J. curvifolia.J 
JUNGERMANNIA CURYIFOLIA. 
(TAB. XVI.) 
J ungermannia, surculo procumbente, stellatim ramoso: foliis subrotundis, valde concavis, 
bifidis ; segmentis acuminatis, incurvatis : fructu in ramis propriis brevissimis centralibus 
terminali ; calycibus oblongis, subplicatis ; ore dentato. 
Jungermannia curvifolia. Dicks. Crypt. Fasc. n. p. 15. t. 5. f 7 ■ With. hi. p. 864. Linn. 
Syst. Nat. ed. Gmel. n. p. 1352. Engl. Bot. t. 1304. 
Hab. In alpibus scoticis. Mr. Dickson, 1. c. — Many places in the ascent to Crib-y- 
Ddescil, from Llanberris ; and on the summit of Carnedd Llewelyn ; also, near 
Llyn Llumbren, Denbighshire. Mr. Griffith, in With . — Usgoed-Eynon Garn, South 
Wales. Mr. G. Sowerby . — On decaying wood by a mountain-lake, near Bantry. Miss 
Hutchins . — On Ben Lawers, Ben Nevis, and boggy ground at a place called Balloch- 
nacreash, in the north-western part of Ross-shire. — Crannies of rocks, Mourne 
mountains, Ireland. Mr. Templeton. 
Plant forming small and loosely-entangled patches of a few inches in diameter, and of a 
deep purple color. 
Root consisting of minute, whitish fibres, proceeding here and there from the under 
side, and most profusely from the lower part of the plant. 
Surculi scarcely more than half or three-quarters of an inch in length, branching out 
from a centre in a sort of stellated manner, procumbent, filiform, flexuose ; branches 
simple, or, as is more usually the case, once again divided} their diameter about 
the twelfth of a line; their color a pale yellow green, purple towards the extremity; 
their substance delicate, cellulose, flexible, but more rigid and brittle in a diy 
state. , 
The leaves (f. f. 4. 5) seem to be for the most part closely placed : they have a bifarious 
insertion, though, from their upright position, they have a secund appearance ; they 
are remarkably concave, and measure from the eighth to the fouith of a line in 
length ; those at the extremities of the surculus being the smallest ; their shape is 
round, approaching, however, to ovate; from the apex they are divided about half 
way down the middle by a rather obtuse sinus, of which the segments are acuminate, 
and incurved towards the hollow of the leaf, in a very striking manner. The reticu- 
lation is large, formed by oblong cellules. The color a pale green, changing, m 
those parts which are most exposed, to a fine purple. 
