68 HEPATIC.^. 



1" mm. X '6 mm., antical 1* mm. x '5 mm., postical *8 mm. x 

 •4 mm. 



Hab. — On damp or wet rocks, or on earth-encrasting rocks, 

 near streams. Rare. 



7. Torrent Walk, Dolgelly, Dr. Carrington and W. H. P. 

 Tyn-y-Groes, Merioneth, JF. 11. P. 12. Lodore Falls, Cumber- 

 land, Dr. Carrington and W. H. P. Rostliwaite, Cumberland, 

 Dr. Carrington and W, H. P. 13. Ness Glen, Dalmellington, 

 Ayrshire, J. McAndreio. I. Dunkerron, Dr. Taylor. Tore Water- 

 fall, Dr. Spruce, Dr. Carrington. Rocks below Eagle's Nest, 

 Cromaglown, G. E. Hunt. Glena, $ Stewart and Holt. 



Not found on the Continent or in North America, the 

 specimens from Tallulah Falls, Georgia, belonging to a different 

 species. 



Obs. — Distinguished from other dioicous British Radulce by 

 its pale yellow colour, broad antical lobes, and subrotund-cordate 

 auriculate postical lobes of the leaves, which are more or less 

 undulate and of a flaccid texture. Badula xalajjcnsis, Mont., from 

 Bolivia, according to the opinions of Dr. Spruce and Stephani, 

 who have seen original specimens, is a different species, which I 

 fully agree with, having myself examined them. 



Description of Plate XXI. — -Fig. 1. Plant natural size. 

 2. Portion of stem, postical view x 24 (C. & P., n. 44). 3, 4. 

 Leaves, antical lobes x 24 (Tore Waterfall, R. Spruce). 5. 

 (Ditto) x (Herb. Taylor). 6, 7. (Ditto) x 24 (Tore, Dr. 

 Spruce). 8. Portion of leaf x 290 (Glena, Holt and Stewart). 

 9. Male catkin, postical view x 16 (ditto). 



2. Radula Lindbergii,, Gottsche. 



Radula comiJlanata (L.), var. propagxdifara, Nees,'Nat. Eur. Leb, iii. p. 148 (1838). 

 Radula Lindenhergiana, Gottsche, Hartmann's Handb. Scaud. Fl. 9, Aufl. p. 98 



(1864), in error, should be R. Lindhergiana. 

 Radula commutata, Gottsche, Jack, " Flora," n. 23 & 25 (1881), 



Dioicous, widely and shallowly casspitose, medium to largish 

 in size, from dull greenish-brown to dark sordid brown. Stems 

 prostrate, subpinnate, irregularly or regularly bipinnate, branches 



