302 Ferns of British India and Ceylon. 



texture membranaceous, surfaces glabrous ; main veins distinct to 

 margin ; areoles with free included veinlets ; sori copiously scattered, 

 terminal or compital. Mett. Kuhn. Lin. 36, p. 124. Baker, Hook. 

 Syn. Fil. 506. 

 Malacca. 



6. Dictyopteris heterosora. {Baker) Stipe short brown, 

 with spreading linear scales ; fronds oblong-spathulate, 2-3 feet long, 

 simply pinnatifid, the lowest foot only a narrow wing to the rachis, 

 above this 3-4 pairs of distant oblong-lanceolate acuminate pinnae, 

 1 1-2 inches broad at middle, confluent in a narrow wing, the lowest 

 simple or bipartite, texture thin but firm, surfaces glabrous, ribs naked 

 brownish ; main veins distinct to edge, 3-4 lines apart with distinct 

 arches between them, and copious small areoles w T ith free included 

 veinlets ; sori very abundant, small irregular, often confluent. Baker, 

 Hook. Syn. Fil. 506. 



Malacca, (habit of Aspidium vastum.) 



** Eremobryoid series. Steins articulated at the point of junction with 

 the rhizome ; sori generally, not always, terminal on the veins. 



GENUS LX.— POLYPODIUM. {Linn) 



{Polys, many ; pons, foot ; polypus, — the rhizome when destitute of 

 fronds, having the appearance of some kinds of sea polypus.) 



Veins all free; sori naked, generally punctiform, round, rarely 

 oblong, generally terminal on the veinlets, or more rarely below the 

 apex ; fronds simple or pinnatifid or rarely pinnate or more 

 compound. 



* Fronds entire. 



1. Polypodium parasiticus. {Mett.) Rhizome erect, rarely 

 creeping ; stipes tufted, subsessile, hairy or fuscous , fronds 2-3 

 inches long, f-§ inch broad (rarely more), narrow linear (rarely 

 abnormally pinnatifid), blunt at the apex, gradually narrowed at the 



