Mr. Hooker's Descriptions of new Mosses from Nepal. 319 



Operculum capsula pallidius, eonicum, umbone minuto, 

 obliquo terminatum. Peristomium exterius dentibus fusco- 

 flavescentibus, transversim striatis ; interius dentibus mem- 

 branaceis, flavis, similiter striatis. 



The singularly variable form of the leaves offers so strong a 

 character of this moss that I have derived from it the specific 

 name. In size and in general appearance, when dry, it consi- 

 derably resembles Mnium stellare of lied wig, near which it must 

 be arranged in the system. 



Tab. XXVIII. Fig. 1. , 



a. Pry urn heterophyllum, natural size. 



b. upper leaf magnified. 



c. intermediate leaf, 



d. lower leaf. 



e. portion of the leaf highly magnified. 



f. capsule, 



g. operculum. 



14. Leskea flexilis. 



L. flexilis. Hedw. Sp. Muse. p. 234>. t. 58 \ 



I am induced to offer a figure of the leaves of this very "cu- 

 rious moss, the specimens gathered by Dr. Buchanan differing 

 from those figured by Hedwig, in having their leaves furnished 

 at the base with a very evident, though short nerve, and tipped 

 in many instances with a piliform mucro. Dr. Buchanan found 

 it upon trees mixed with Pterogonium a??ibiguum, and, like Dr. 

 Swartz, found it only barren. I have compared the individual 



here 



