NEW HEPATICE. 375 



side. Perigonial shoots alternate, one to each leaf, and 

 scarcely extending beyond it. Pedicel about twice as long 

 as the calyx. Capsule cylindrical. This has been supposed 

 to be a variety only of Radula pollens, Sw., by the distin- 

 guished editors of the Synopsis Hepaticarum ; but it is pro- 

 bable that they never saw the calyx, whose breadth is plainly 

 distinctive, independent of the larger, wider, and exteriorly 

 angulate leaves and lobules. The pinnate ramification is not 

 confined to the male plant. It appears to us far nearer to 

 our Irish Radula Voluta, it wants, however, the remarkable 

 volution at the inner margin of the base of the leaves and 

 lobules. 



3. R.Jamesoni, Tayl.j caule implexo, procumbente, pinnato; 

 ramis complanatis, brevibus, patentibus j foliis subapproxi- 

 matis, rotundatis, recurvis, decurrentibus, planiusculis, 

 rnargine subilexuosis, integerrimis ; lobulo cauli adnato, 

 apice triangulari-oblongo, obtuso, margine incurvo, trans- 

 versim adscendente. 



Hab. Woods on Pichincha; Prof. W. Jameson, n. 335. 



Hook. Herb, 



Patches loose, very pale tawney. Stems 4 inches long, 

 pinnate, with alternate, rather distant, short, patent branches. 

 Leaves scarcely touching one another, flat. Lobule crossing 

 the stem, and adpressed to it. So like is the present to the 

 preceding species that Professor Jameson seems to have sent 

 them at different times under the same n. 335, but the 

 lobule of R. ramulina, Tayl,, is much wider, rhomboidal in 

 shape, extends on either side beyond the stem, and is not at 

 all tumid : the cellules of the leaves, too, are larger. 



4. R. cordiloba, Tayl. j caule implexo procumbente, subpin- 

 nato; ramis complanatis, erecto-patentibus ; foliis laxe im- 

 brieatis, oblongis, apice rotundatis, recurvis, integerrimis, 

 decurrentibus j lobulis cordatis, obtuse apiculatis, supra 

 caulem protractis; calyce axillari, lateralique, sessili, ex 

 angusta elongata basi cylindrico, ore compresso, truncato, 

 minutissime crenulato ; perichaetio foliis breviore. 



Hab. Pacific Isles. Nightingale, Hook. Herb. 



