BRITISH J UNGERM ANN I-iE. 
C ./. planijolia.) 
JUNGERMANNIA PLANIFOLIA. 
(TAB. LX VII.) 
Jungermannia, caule erecto, subsimplice: foliis quadrifariam imbricatis, compresso-planis ; 
inferioribus majoribus, ovatis ; superioribus cordatis ; omnibus elegantissime dentato-ciliatis. 
Hab. Upon Ben na Bord; and upon Ben Mae Davie, a mountain to the north of the Dee. 
Mr. George Dunn , 1812. — Summit of Brandon. Dr. Taylor, 1813. 
Plant growing in rather closely-crowded patches of a remarkably dingy brown color; always 
intermixed with mosses and other Jungermanniae. 
Roots, a few short brownish fibres, issuing principally from the lower part of the plant. 
Stems erect, from two to three inches long, and about the thickness of packthread, flexuose, 
filiform, for the most part simple, but now and then forked : their color dark brown : their 
texture compact, rigid, and brittle. 
Leaves (f. 2) truly quadrifarious in their insertion, and imbricated on both sides of the stem ; 
those at the back of it the largest, a line in length, plane, distichous, vertical, of a 
widely ovate figure ; the superior leaves scarcely half so large as the rest, and obliquely 
appressed to them 5 their form nearly cordate : the whole are beautifully dentato-ciliate 
at their margins, of a rather dark brown color, sometimes inclining to purple towards 
the extremity. The cellules (f. 5) are very minute, but somewhat distantly placed, and 
frequently of a paler color than the interstices : the texture thin, membranaceous; when 
dry, brittle, like the stem. 
Fructification totally unknown. 
* 
