'uiwermannia. 



HEPATIC7K. 113 



Very nearly allied to ./. excisa; but the foliage has a much more loosely 

 cellular texture (which also keeps it distinct from -/. iucisa) and the 

 upper leaves, which, too, are tri-quadrifid, are collected into a head at 

 the extremity of the stem or branch. 



27. J. incisa, Schrad. (^jag -leaved Jungermannia); stem pros- 

 trate nearly simple, leaves rotundato-quadrate waved trifid the 

 segments unequal here and there toothed, fruit terminal, perianth 

 obovate. Schrad, Samml.2. p. 5. Hook. Br. Jung. t. 10. E. 

 Bot. t. 2528. Lindenb. Syn. Hepat.p. 93. 



Wet bogs. Fr. Winter and Spr. — A minute species, like the preced- 

 ing, with foliage of a pale delicate green, densely crowded, waved and 

 cut, and with thickened and compressed stems. Fruit rare. Gemma co- 

 pious, collected into little balls on the points of the leaves. 



28. J. pusilla, Linn, (dwarf Jungermannia); stem procumbent 

 nearly simple, leaves horizontal quadrate waved large irregularly 

 2 — 3-fid, fruit terminal, perianth campanulate, the mouth much 

 spreading waved and cut, capsule globose bursting irregularly. 

 Linn. Sp. PI. p. 1602. E. Bot. t. 1175. Hook. Br. Jung. t. 69. 

 Hobs. Br. Mosses, v. 2. n, 105. Lindenb. Syn. Hepat. p. 9-1. — 

 J.angulosa, Dichs. — J. Wondraczelci, Cor da in Sturm, Deutschl. 

 Fl. cum 1c — Dill. Muse, t. 71. /. 22, C, D, E, and t. 74. /. 46. 



Moist shady banks, especially on clay. Fr. Aut. and Spr. — This 

 species is quite peculiar. Its short and stout stems are furnished with 

 long purple radicles for the whole length of their underside. Leaves large 

 in proportion to the size of the plant and closely set, spreading. Anthers, 

 as they are called, are found naked upon the stems. The perianth is 

 singularly large, campanulate, often cut, with 4—5 external Bubulate 

 appendages or bracteas. The cajmde is globose, of a very thin and fragile 

 texture, bursting irregularly and containing teed* which are densely muri- 

 cated. Sometimes 2 or 3 capsules arise from the same calyx. 



*** Leaves bifid, the segments unequal, conduplicate, 



29. .1. m in,, rdsa, Linn, (wood Jungermannia); stem erect 

 subdichotonioiis, leaves unequally 2-lobed dentato-ciliate, lobea 

 conduplicate the Lower ones larger obovate the upper one§ sub- 

 cordate obtuse, fruit terminal, perianth oblong incurved com- 



pressed, the mouth truncated dentato-ciliate. Linn. Sp.Pl. />. 



1598. /;. Bot.t. iii»7. Book. Br. Jung. /. 21. Bobs. Br. Most r, 

 /•. 2. a. MM. — ./. resupinata, L. lint, t 243. Lindenb. Syn. 

 Hepat. i>. :>L— /;///. Muse. t. 7 1. f. 19. — ■]. purpurascens. J. 

 cochkartformis, With. — Dill. Muse). 7 1./: 21, — y. recurvifblia. 

 Book. Br, Jung. I.e. — >.. denudata ,• lobes of the leaves Dearly 

 entire. Book, Br. Jung. I. e. 

 Woods and among pedallj in alpine situations. Fr. April, 



May. 



SO. J.planifdlia, Hook. (fiat4eaved Jungermannia); stem 

 erect nearly simple, leaves bipartite, lobes unequal dentato-ei- 

 liate conduplicate the lower ones larger ovate the upper ones 

 cordate. Book. Br. .lung. t. ii7. it m E, /int. Suppl. t. 2695, 

 ./. nemorosa, fc Lindenb. Syn, BIspaLp, . r >L\ 



i 



