BRITISH JUNGERMAMIT. 
f J. julacea.J 
JUNGERMANNIA JULACEA. 
(TAB. II.) 
Jungermannia, caule erectiusculo, vagh ramoso, filiformi : foliis quadrifariis, ovatis, arctfc 
imbricatis, erectis, acute bifidis ; segmentis lanceolatis, acuminatis, subserratis : fructu terminali ; 
calycibus oblongis, superne plicatis ; ore ape 1 to, dentato. 
Jungermannia julacea. Linn. Sp. PI. n. p. 1601. Syst. Nat. n. p. 706. FI. Lapp. eel. 
Smith, p. 342. Schrader, Samml. ii. p. 4. n. 94. Weber, Spicil. p. 151. n. 215. 
Huds. Angl. p. 516 Lightf. Scot. ii. p. 785. With. m.p. 863. Linn. Syst. ed. Gmel. ii. 
p. 1352. Lamarck, Encycl. Dot. hi. p. 285. Engl. But. t. 1024. 
Jungermannia caule filiformi, foliis appressis, inconspicuis. Hall. Helv. hi. p. 63. n. 1882. 
Lichenastrum alpinum, Bryi julacei argentei facie. Dill. Muse. t. 73. f. 38. 
B. gracilis ; caulibus elongatis : foliis parvis, remotiusculis. 
Hab. Welsh mountains, Dillenius and Mr. Griffith . — Ben Lawers and Craigalleach, in 
Breadalbane; Ben Nevis, Ben Luyal, and Cairngorum. — (3. On the summit of Ben 
Nevis, in wet places at its eastern extremity. 
Plant growing in dense patches of considerable extent ; when barren thickly entangled and 
matted together. 
Stems in a barren state usually procumbent, in fertile specimens erect, from half an inch 
to an inch and a half in length, of an equal thickness throughout, of a dirty brown 
color, rigid and brittle when dry, irregularly divided, and generally more or less beset 
with branches, which are equally uncertain in their number, disposition, and length, 
and are suhpatent. 
Leaves closely imbricated and appressed, surrounding the stem on four sides (f. 5) and 
entirely concealing it, erect, nearly ovate, flat, or but very slightly concave, acutely 
cleft to about three-fourths of their length into two equal segments, which are straight, 
ovato-lanceolate and acuminated, their margins very obscurely serrated : the terminal 
leaves, which usually grow in clusters, differ from the rest in having the segments 
more lanceolate and acute, and in being more evidently, though very unequally, serrated. 
