118 ACOTYLEDONS. HEPATIC.^. Jungermannia* 



HAB. Rocks in the Den of Rechip, near Dunkeld, rare, Hook. 

 *** Lower or smaller segments of the leaves saccate. 



54. J. dilatata, stem creeping irregularly branched, leaves un- 

 equally two-lobed,superior lobes ovato-rotundate,inferior round- 

 ed saccate, stipules rounded plane emarginate, fruit terminal, 

 cal. obcordate tuberculated triangular. Hook. Jung. t. 5. 



HAB. Trunks of trees,, frequent, and on rocks, Lightf. p. 781. 



55. J. Tamarisci, stem creeping branched in a pinnated \narmer, 

 leaves unequally two-lobed, superior lobes ovato-roundish, in- 

 ferior ones minute obovate saccate, stipules subquadrate emar- 

 ginate the margins revolute, fruit terminal on short branches, 

 cal. obovate smooth triangular. Hook. Jung. t. 6. Lightf. p.782, 



HAB. Common on rocks and heaths. 



B. Frondose. 

 a. Nerveless. 



56. J. pinguis, frond oblong decumbent nerveless fleshy nearly 

 plane above swelling beneath irregularly branched, the margin 

 sinuated, fruit arising from the underside near the margin, cal, 

 very short the mouth dilated fimbriated, calyptra exserted ob- 

 longo-cylindrical, smooth. Hook. Jung. t.46. Lightf. p. 789. 



HAB. Wet and boggy places, Pentland Hills, Mr. Greville. 



57. J. multifida, frond linear nerveless fleshy compressed branched 

 in a pinnated manner, fruit marginal, cal. very short, the mouth 

 dilated fimbriated, calyptra exserted oblongo-cylindrical tuber- 

 culated. Hook. Jung. t. 45. 



HAB. Bogs, common. 



b. Fronds with a nerve. 

 * Cal. single. 



58. J. Blasia, frond oblong submembranaceous dichotomous 

 costate having scattered scales on the underside, cal. and the 

 calyptra within the frond. Hook. Jung. t. 72, 73, and 74. 

 Blasia pusilla, Lightf. p. 1118. 



HAB. Woods and exposed rocky or heathy places. In fruit, at Kin- 

 nordy, Mr. Lyell; and Auchindenny wood, Mr. Greville. 



59. J. epiphylla, frond oblong submembranaceous irregularly 

 divided obsoletely ribbed the margin entire or lobed and sinua- 

 ted, fruit arising from the superior part of the frond near the 

 apex, cal. subcylindrical plicate, the mouth dilated inciso-den- 

 tate, calyptra exserted smooth. Hook. Jung. f. 47. Liahlf. 

 p. 788. 



HAB. Shady moist places in bogs, plentiful. 



60. J. furcata, frond linear dichotomous membranaceotis costate 

 glabrous above more or less hairy beneath and on the margin, 

 fruit arising from the lower surface of the nerve, cal. 2-|Qbed 





