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GENUS VII. 



MESOCHL^NA. R, Brown. 



Veins pinnate and costseform^ the lower pair of venules 

 anastomosing. Sori oblong-linear, medial. Indusium linear, 

 and being attached longitudinally on the centre of the receptacle. 

 Fronds bipinnatifid. 



Fee, in his '^Genres de la Famille des Polypodiacees," under 

 the name of Steg7iogra?nme, enumerates the following: — 



1. — Aspidioides, Blume. 



2. — McsoMcena, Fee. 



3. — Moluccana, Fee. 



4. — Javanica, Brown. 



Only one species is cultivated in England, namely, MesocJilcena 

 Jac allien. 



