1 14 ACOTYLEDONS. HEPATIC^. Jungermannia. 



quadrate waved subtrifid the segments equal here and there 

 toothed, fruit terminal, cal. obovate^. Hook. Jung. t. 10. 

 HAD. Moors, common, growing with J. resupinata, D. Don. 



24. J. pusilfe) stem procumbent nearly simple, leaves spreading 

 horizontally quadrate waved obtusely bi-tricrenate, fruit ter- 

 minal, cal. campanulate, caps, sphaerical bursting irregularly. 

 Hook. Jung. t. 69. 



HAB. Moist, especially clayey, banks. 



25. J. tctiformis, stem erect subsimple, leaves bifarious closely 

 imbricated erect quadrate quadrifid their inferior angles here 

 and there spinuloso-dentate, fruit terminal and lateral, cal. 

 oblong plicate, the mouth open. Hook. Jung. t. 20. 



HAB. Cairn-gorum, on the summit, Hook. Highland mountains, 

 Dickson. Clova mountains, G. Don. 



**** Leaves two-lobcd; the segments unequal^ conduplicate. 



26. J. nemorosa, stem erect subdichotomous, leaves unequally 

 bilobed semibifid dentato-ciliate, lobes conduplicate, the infe- 

 rior ones larger obovate, the superior ones subcordate obtuse, 

 fruit terminal, cal. oblong incurved compressed, the mouth 

 truncate dentato-ciliate. Hook. Jung. t. 21. Lightf. p. 778 

 (J. purpurea.) 



HAB. Woods, rocks, and shady places, frequent. 



27. J. umlrosa, stem nearly erect somewhat branched, leaves 

 un equally bilobed> lobes conduplicate serrated at the extremities 

 acute, the lower ones larger ovate, superior ones roundish-ovate, 

 fruit terminal, cal. oblong incurved compressed, mouth trun- 

 cated entire. Hook. Jung. t. 24. 



HAB. On Ben Nevis ; in the Den of Rechip, near Dunkeld, Hook. 



23. J. undulata, stem erect subdichotomous, leaves unequally two- 

 lobed waved entire, lobes roundish conduplicate lower ones the 

 largest, fruit terminal, cal. oblong incurved compressed, mouth 

 truncated entire. Hook. Jung. t. 22. Lightf. p. 776. 



HAB. Moist rocks, plentiful ; especially by the side of streams. 



29. J. resupinata, stem procumbent nearly simple, leaves roundish 

 nearly equally bilobed entire, lobes conduplicate, fruit terminal, 

 cal. oblong incurved compressed, mouth truncate toothed. 

 Hook. Jung. t. 23. Lightf . p. 776. 



HAB. Heaths, common, D. Don. 



30. J. albicans, stem erect subdivided, leaves unequally bilobed, 

 lobes conduplicate with a pellucid line in the middle serrated 

 at the extremity, lower ones larger subacinaciform, upper ones 

 oblongo-ovate acute, fruit terminal, cal. obovate cylindrical, 

 the mouth contracted toothed. Hook. Jung. t. 25. Lightf. 



^p. 777. 

 HAB. Woods, rocks, heaths, and mountains, abundant. 



3 1 . J .oltusifblia, stem ascending simple, leaves unequally bilobed^ 



