58 CRYPTOGAMIA HEPATIC^. 



mination of the species principally depends, I have accompanied 

 my descriptions with outline figures, taken, in every instance, 

 from specimens collected in Berwickshire. They will enable the 

 student, with facility, to determine the species, which are less 

 numerous than I had anticipated ; and the more experienced 

 botanist to judge of the accuracy of my synonymy. The figures 

 in English Botany, so far as I remember, are of little value ; and 

 Dr HOOKER'S Monograph of the genus, so celebrated for its com- 

 pleteness, accuracy, and beauty, I have never seen. 



* Leafy and stipulate. 

 \- Leaves imbricated. 



1. J. Tamarisci, stem decumbent, bipinnate ; leaves brown, 

 unequally 2-lobed, superior lobes roundish, the inferior minute, 

 obovate, saccate ; stipules ovate, emarginate. (Tab. v. Fig. 1.) 

 LIGHTF. Fl. Scot. 782. HOOK. Scot. ii. 118. J. tamariscina, 

 Eng. Bot. t. 2481 Dill. Muse. t. 72. f. 31, 



Hob. On rocks and heaths, common; and sometimes on 

 trunks of trees in woods, in tufts of a dark brown co- 

 lour. 



The stem is slender, branched in a pinnated manner, de- 

 cumbent or often nearly erect, but scarcely ever creeping. 

 It appears never to produce fruit in this neighbourhood. 

 It is probably the J. tamariscifolia of WITHERING, who, 

 however, has mixed up its description with that of the fol- 

 lowing species. 



2. J. dilatata, stem creeping, matted, irregularly branched ; 

 leaves alternate, unequally 2-lobed, lobes entire, roundish; sti- 

 pules rounded, plane, emarginate ; fruit terminal ; calyx com- 

 pressed, minutely tuberculate, and puckered at the mouth. (Tab. v. 

 Fig. 2.) WITH. iii. 1074. LIGHTF. Scot. 781. HOOK. Scot. ii. 

 118. J. tamariscifolia, Eng. Bot. t. 1086. Dill. Muse. t. 72, f. 27. 

 Loud. Encyclop. No. 14998. 



Hal. On trees, in circular dense patches of a reddish or 

 purplish-brown colour, common. Spring. 



The stems are slender, and the specific name has reference 



