376 NEW HEPATJOE. 



Patches wide, olive-brown. Stems 4-5 inches long. Branches 

 curved upwards, pinnules short. The junction of the leaf to 

 the lobule is sinuate beneath. Lobule cordate, embracing 

 the stem by a decurrent junction with the leaf. Pericheetial 

 leaves two, erect, shorter than the cauline. Calyptra with an 

 elongated and contracted base, elliptical above. Capsule cy- 

 lindraceous. Seeds angulato-rotund, with a thick, pellucid, 

 yellowish-olive tunic containing a dark green granulous mass. 

 Elateres with double, close convolutions. This differs from 

 Swartz's specimens of his Jung, pollens, Flor. Ind. Occid., 

 by the longer stems, by the darker and greener colour, by 

 the more oblong leaves, which have smaller cellules, by the 

 lobule partly crossing the stem, and having the inner margin 

 free, while the apex is less incurved, and by the more 

 slender calyx. From R. reflexa, Mont, et Nees, ours is 

 distinguishable by the larger and more recurved leaves, by 

 their minuter cellules, by the lateral sessile pericfuetia, and 

 by the more slender calyx. 



5. R. recubans 3 Tayl.j caule dense implexo, adscendente, 

 subdichotomo, subpinnato ; ramis patentibus j foliis ap- 

 proximatis, patentibus, subrotundis, planis, integerrimis ; 

 lobulis majoribus, rotundato-subquadratis, introrsum cau- 

 lem transeuntibus, liberis, rotundatis, extrorsum obtuse 

 apiculatis, exciso-sinuatis; perichsetiis axiliaribus laterali- 

 busque, sessilibus. 

 Hab. Demerara. Herb. Grevill. (sub nomine Jung. Bo- 

 ryance). 



Patches dense, dusky-green. Stems 2-3 inches long. Leaves 

 scarcely imbricated. Lobules with a tumid, amplexicaul 

 base, slightly incurved above, the apex obtusely angular and 

 pointing outwards j the lobule has a sinus exteriorly. This 

 species approaches near to Radula Javanica, Gottsche, (we 

 allude to the specimens from Owhyhee quoted in the Syn. 

 Hepat.), differing by the greater size, more round leaves, 

 larger lobules, which pass across the stem interiorly, and 

 which exteriorly are sinuato-emarginate, by the closer cellu- 

 lation of the leaves, and decisively by the sessile perichatia. 



