AN ENUMERATION OP CULTIVATED PERNS. 



135 



l-2 feet high, submembraneous. Primary veins costasform, 

 transversely combined and compound anastomosing, with free 

 veinlets terminating in areoles. Receptacles punctiform, com- 

 pital. Sort round or by confluence unequal oblong, oblique 

 biserial or irregular, naked. 



1. D. plantaginea, J. Sm. in Seemann's Sot. Voy. Herald* 



Polypodium plantagineum, Linn. ; Jacq. Coll. t. 3,/. 1 ; 



(Plum. Fil. 1. 128). Aspidium plantagineum, Grisb. ; 



' HooJc. Sp. Fil. (in part). Pleopeltis plantaginea, 



Moore, Ind. West Indies. 



62. DICTYOPTEBIS, Presl (in part). 



Vernation fasciculate, decumbent or sub-erect. Fronds 

 coriaceous, deltoid, bipinnatifid or bipinnate, 3-4 feet high ; 

 ultimate segments or pinnules sub-entire or sinuous-pinnatifid. 

 Feins costasform ; venules and veinlets anastomosing (rarely 



Genus 62. Portion of fertile pinna; ditto barren and fertile. No. 1 . 



few free, excurrent), forming oblique, somewhat elongated 

 areoles, the costal ones transversely elongated. Receptacles 

 medial or compital. Sori round, large, irregular, sometimes 

 crowded near the margin, naked. 



1. D. irregularis, Presl. Polypodium irregulare, Presl. Eel 

 Hcenk. t. 4,/. 3. East Indies, Malayan and Philippine 

 Islands. 



