BRITISH JUNGERMANNIiE. 
( J . capitata.J 
JUNGERMANNIA CAPITATA. 
(TAB. LXXX.) 
Jungermannia, caule prostrato, simplicinsculo j foliis rotundato-quadratis, inferioribus bifidis, 
reliquis tri-quadrifidis : fructu terminal! ; calycibus oblongo-ovatis, subplicatisj ore contracto, 
dentato. 
Hab. Cadnam Bog, New Forest, Hants, and Lyndhurst Race-course, in the same county. 
Mr. Lyell. — On a rock in a dry mountainous situation near Bantry, Ireland. Miss Hutchins. 
Plant growing in very small pale-green patches, on a turfy soil, and having much the general 
appearance of small tufts of J. incisa. 
Roots rather numerous, proceeding from nearly the whole length of the underside of the 
stem, pellucid, simple, fibrous. 
Stems a quarter of an inch or rarely half an inch long, rather stout in proportion to their 
length, almost always simple (in one or two instances, only, I have observed a solitary 
lateral shoot, f. 1) : the color greenish, sometimes, but especially towards the base, dingy 
brown : the texture remarkably fragile. 
Leaves rather closely ranged in two rows, sometimes patent or nearly horizontal, at other 
times, and generally (f. 3) nearly erect, of a roundish figure, approaching to quadrate ; 
those at the base smallest and simply bifid, whilst the rest gradually increase in size as they 
approach the extremity, and are both trifid and quadrifid ; the segments unequal, a little 
waved and acute. At the very apex, particularly of the sterile shoots, the leaves are 
collected into a head or cluster, whence the specific name. Their texture is delicate, and 
the cellules large in proportion to the size of the plant, of a roundish shape, or often, as 
Mr. Lyell remarks, truly hexangular. Their color is rather a pale yellow-green. 
Perichatial leaves large, with four or five, very unequal, incurved segments (f. f. 7. 8). 
Male Fructification unknown. 
Female Fructification terminal. 
Calyx large for so small a plant, oblongo-ovate, greenish, a little diaphanous towards the 
extremity, and plicate j at the mouth somewhat contracted, and very unequally toothed. 
Peduncle a quarter of a line long, white, cellulose, a little waved. 
£■ 
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