Jungermannia.^ HEPATIC M. 23 1 



ner, leaves subquadrate obtusely bifid, the segments acute, 

 fruit terminal, calyces oblong plicate, the mouth toothed. 



Jungermannia byssacea. Hook. Brit. Jung. t. 12. Engl. Sot. t. 

 719. (J. divaricata.) 



HAB. Heathy places, in dry and exposed situations. 



28. J. connivens ; stem procumbent branched in a stellated man- 



ner, leaves orbicular concave with a lunulate notch at the 

 extremity, fruit terminal upon proper short central branches, 

 calyces oblongo-ovate, the mouth ciliated. 



Jungermannia connivens. Hook. Brit. Jung. t. 15. Engl. Bot. t. 

 2436. 



HAB. Wet bogs. 



29. J. curvifolia ; stem procumbent branched in a stellated man- 



ner, leaves roundish very concave bifid, the segments acute 

 incurved, fruit terminal upon short proper central branches, 

 calyces oblong subplicate, the mouth dentate. 



Jungermannia curvifolia. Hook. Brit. Jung. t. 16. Engl. Bot. t, 1304. 



HAB. Alpine situations, especially on decaying wood. 



* * * Leaves tri-quadrifid ; the segments equal. 



30. /. capitata ; stem prostrate nearly simple, leaves rotundato- 



quadrate, the lower ones bifid, the rest tri-quadrifid, fruit 

 terminal, calyces oblongo-ovate subplicate, the mouth con- 

 tracted toothed. 



Jungermannia capitata. Hook. Brit. Jung. t. 80. 



HAB. Bogs, South of England and of Ireland. 



31. J. incisa ; stem prostrate nearly simple, leaves rotundato- 



quadrate waved subtrifid, the segments unequal here and 

 there denticulate, fruit terminal, calyces obovate. 



Jungermannia incisa. Hook. Brit. Jung. t. 10. Engl. Bot. t. 2528. 



HAB. Wet bogs. 



32. J. pusilla ; stem procumbent nearly simple, leaves horizontal 



quadrate waved obtusely bi-tricrenate, fruit terminal, calyces 

 campanulate. 



Jungermannia pusilla. Hook. Brit. Jung. t. 69. Engl Bot. t. 1775. 



HAB. Moist shady banks, especially on clay. 



33. J. setiformis; stem erect nearly simple, leaves bifarious 



closely imbricated erect quadrate quadrifid having the in- 

 P4 



