118 HEPATICiE. [Jungermannia* 



The leaves are of a singularly glaucous lure, with large cellules. Cap* 

 side linear-oblong ; its valves spirally twisted. Gemmce are produced in 

 little balls at the extremity of leafless prolongations of the stem. 

 Hence Linnceus referred the plant to his Mnium. 



b. Leaves bi-tri-jid or-partite, the segments equal. 

 * Stipules much smaller than and very distinct from the leaves. 



48. J. bid&ntdta, Linn, (triangular-sheathed Jungermannia) ; 

 stem procumbent branched, leaves broadly ovate decurrent bi- 

 fid at the apex the segments very acute entire, stipules bi-trifid 

 and iaciniated, fruit terminal, perianth oblong subtriangular, the 

 mouth Iaciniated. Linn. Sp. PL p. 1598. E. Bot. t. 606, and 

 t. 281, (under the name of J. bicuspidata). Hook. Br. Jung, 

 t. 30. Hobs. Br. Mosses, v. 2. n. 85. — Lindenb. Syn. Hepat. 

 p. 41. Dill. Muse. t. 70. f. 1 1 3. obtusata ; leaves bluntly emar- 

 ginate dark green, stipules multifid. Hook. Br. Jung. I. c. 



Moist and shady situations, on hedge-banks, particularly among moss 

 and the roots of trees. /3. In very wet parts of Holt Heath, Norfolk, 

 Rev. R. B. Francis. Fr. Winter and Spr. — This Jungermannia (as well 

 as some others) has a peculiarly agreeable scent, which may perhaps 

 best be compared to that of the dry earth suddenly moistened by a 

 shower. Colour a pale and whitish green. 



49. J. heterophjlla, Schrad. (various- leaved Jungermannia); 

 stem creeping branched, leaves roundish ovate decurrent the 

 extremity rarely acutely generally obtusely emarginate or en- 

 tire, stipules bi-quadrifid here and there Iaciniated, fruit termi- 

 nal, perianth ovate obtusely triangular, the mouth Iaciniated, 

 Schrad. in Journ. Bot. 5. p. 66. Hook. Br. Jung. t. 31. 

 Lindenb. Syn. Hepat. p. 42.— Dill. Muse. t. 70./. 12. 



Moist places, upon decaying wood and at the foot of Alders, rarely 

 among rocks. Fr. Winter and Spring. — Mr. Wilson has occasionally 

 found two germens in the same calyx. 



50. J. scutdta, Web. et Mohr, (scutate Jungermannia); stem 

 procumbent simple, leaves rounded acutely emarginate at the 

 apex, the segments acute straight, stipules large ovate acuminate 

 with a tooth near the base at the margin on each side, fruit lat- 

 eral, perianth obovate subplicate at the apex, the mouth con- 

 tracted bluntly toothed. Web. et Mohr, Or. Germ. p. 408. 

 Lindenb. Syn. Hepat. p. 38. — J. stipulacea, Hook. Br. Jung. 

 t.4A. E. Bot. t. 2356. 



Shady rocks in the South of Ireland, Miss Hutchins. Scotland, 

 Mr. Don. Mr. Wilson finds it near Turk Cascade, Killarney (but rare,) 

 and near Llanberis, N. Wales. Fr. June. — A minute species. Mr. 

 Wilson observes the calyx to be somewhat triangular and the stipules and 

 leaves to be larger on the top of the stem than elsewhere. 



5 1 . J. Francisci, Hook. (Holt Jungermannia); stem nearly 

 erect simple or branched, leaves ovate concave acutely emargi- 

 nate, stipules minute ovate bifid, fruit terminal upon short 

 proper branches, perianth oblongo- cylindrical a little plaited, the 



