Jungermannia.1 HEPATIC^. 227 



bifid, the segments lanceolate acuminate subserrate, those of 

 the perichsetium quadripartite, fruit terminal, calyces oblong 

 plicated upwards, the mouth open toothed. 



Hook. Brit. Jung. t. 2. Engl Bot. t. 1024. 



HAB. On elevated mountains in wet soil. 



4. J. laxifolia ; stem erect nearly simple filiform, leaves remote 



quadrifarious erecto-patent ovate subcarinate acutely bifid 

 (those of the perichaetium similar,) fruit terminal, calyces 

 oblong subplicate, the mouth contracted toothed. 



Hook. Brit. Jung. t. 59. 



HAB. Mountain rivulets, Ireland. 



5. J. juniperina ; stem erect flexuose nearly simple, leaves 



quadrifarious falcato-secund linear-lanceolate bipartite, seg- 

 ments straight acuminate, fruit terminal, calyces ovate bear- 

 ing leaves. 



Hook. Brit. Jung. t. 4. Engl. Bot. t. 2443. 



HAB. On rocks in subalpine countries. 



6. J. Hookeri ; stem erect somewhat branched, leaves imbricated 



on all sides ovate or oblongo-ovate here and there lobed or 

 angled, fruit terminal, calyx none, calyptra large oblong 

 fleshy smooth. 



Engl. Bot. t. 2555. Hook. Brit. Jung. t. 54. 

 HAB. Very rare. Boggy places at Cadnam, New Forest, 

 Hants; and Kinnordy Moss, Forfarshire. C. Lyell, 

 Esq. 



b. Leaves bifarious. 

 * Leaves undivided. 



7. J. asplenioides ; stem ascending branched, leaves obovato- 



rotundate ciliato-dentate somewhat recurved, fruit terminal 

 and lateral, calyces oblong compressed oblique, the mouth 

 truncated subciliated. 



Hook. Brit. Jung. t. 13. Engl Bot. t. 1788. 



HAB. Woods and among rocks, common 



8. J. spinulosa; stem erect branched, leaves obovate recurved 



with the margin and the apex on one side dentato-spinulose, 

 fruit lateral and axillary, calyces roundish compressed, the 

 mouth truncate ciliated. 



P2 



