27 8 New Plants of the Orders Musci and Hepatico. . 



curved, and towards the apex even rolled in, while the 

 branches and ramuli are all directed to one side, and in- 

 curved in the same manner. Leaves imbricated on all 

 sides, remote below, more numerous above, short, erect, 

 divided into 5-8 setaceous, articulated segments, the 

 central ones of which are three or four times as long as 

 the body of the leaf; the lateral segments are much 

 shorter. The reticulation of the body of the leaf minute ; 

 that of the segments large. Towards their apex the seg- 

 ments appear to be cylindrical, are simply articulated, and 

 in the dry state, have the joints often collapsed in alternate 

 directions, as in many conferva. Fructification unknown. 

 This most singular species I extricated from some other 

 mosses communicated to Dr. Hooker and myself, by our 

 excellent correspondent, Mr. Charles Fraser. The stems are 

 flexible and exceedingly coriaceous, and the ends of the 

 branches and ramuli, rigidly incurved. 



TAB. XXIII. Fig. 1. Plant nat. size. 2. A portion magn. 

 3. Leaves. 2 and 3 magnified. 



Remarks on the American species of the Genera Hyla and 

 Rana. By Captain John Le Conte of the United States 

 army. Read 16th May, 1825. 



Daudin in his excellent history of the genera Hyla, Rana, 

 and Bufo, has enumerated six species of the first genus, as 

 inhabiting North America. Two of these, H. venulosa, and 

 H. palmata, have certainly never been found in our country, 

 and are probably natives of South America. The H. ocularis 

 I consider a variety of H. squirella ; there will then remain 

 only three that were known to European naturalists, and to 



