Hepaticrs'] 



MEXICO. 



313 



plerumque bifidis, soris longitudinalibus 1-2 prope marginem inferiorem, rachide (ater- 

 rima nitida) facie inferiore concaviuscula alato-marginata, dorso semicylindrico. (Tab. 

 LXXI.) 



A very nearly allied species to this, if not the same, differing only in the more acuminated pinnae, is No. 

 1287 of Mr Cuming's collection from Columbia. In our Mexican specimens, probably from not being sub- 

 mitted to pressure when freshly gathered, the rachis is incurved, and all the pinnae refracted, so that they all 

 point to one side. The fructifications are so sunk into the frond, as to give a tuberculated appearance to the 

 anterior surface. 



Tab. LXXI. Fig. 1. Anterior, and Jig. 2. posterior view of a fertile pinna: — magnified. 



1. Woodwardia radicans. Sw. 

 1 . Blechnum occidentale. L. 



Ord. LXXXVIII. HEPATIC2E. 



1. Fimbriaria tenella. Nees ab Esenb. Ho?: Phys. Berol. p. 45. Bischoff, Lebermoose, 

 in Act. Acad. Nat. Cur. v. 17. P. II. p. 1022. t. 69. /. 2. — Hab. Talisco. 



