AN ENUMERATION OF CULTIVATED FERNS. 
135 
1-24 feet high, submembraneous. Primary veins costseform, 
transversely combined and compound anastomosing, with free 
veinlets terminating in areoles. Receptacles punctiform, com- 
pital. Sori round or by confluence unequal oblong, oblique 
biserial or irregular, naked. 
1. D. plantaginea, J. Sm. in Seemann's Rot. Voy. Herald. 
Polypodium plantagineum, Linn. ; Jacq. Coll. t. 3,/. 1 ; 
(Plum. Fil. 1 . 128). Aspidium plantagineum, Grisb. ; 
Hook. Sp. Fil. (in part). Pleopeltis plantaginea, 
Moore, Ind. — West Indies. 
62. DICTYOPTERIS, 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. 
Veins costaeform ; venules and veinlets anastomosing (rarely 
Genus t'2.— 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. Rel. 
Hcenk. t. 4,/. 3. — East Indies, Malayan and Philippine 
Islands. 
