186 Ferns of British India and Ceylon. 



glabrous or nearly so ; sori in two oblique rows in the segments ; 

 indusium linear, commencing at the midrib, but generally falling 

 well short of the margin, lower ones generally double. Mett. Hort. 

 Fil. Lips. 78. Hook. Syn. Fil. 238 (excluding asperum (Bl.), which 

 differs in its more coriaceous texture, much more regular segments, 

 numerous veinlets, and its prickles.) Bedd. F. B. 1. t. 293. Asplenium 

 marginatum, Wall. Cat. 39 t, type sheet. 



Madras Presidency, in the Western forests up to 6,000 feet 

 elevation. North India, throughout the Himalayas and Khasya 

 hills; Ceylon ; the Malay Peninsula. Clarke's variety " vestita " has 

 the rachises more or less villous or subtomentose, but does not 

 otherwise recede from the type, he says it is confined to the cen- 

 tral Himalayas. His variety " sublatifolia " runs into " latifolia,'' 

 and rather belongs to that species, if the two are really distinct, which 

 is very doubtful, his variety "effusior" is D. umbrobum, var. 

 multicaudata. 



(Also in Australia.) 



Var. {3 decurrens. (Bedd.) Pinnae more deltoid in form 

 with the secondary pinna? few and distant, and more or less decurrent 

 on the rachis, only cut down a third or half-way to the rachis ; veinlets 

 in the segments few, only 3-4 ; sori curved, generally occupying the 

 whole length of the veinlets, and extending to the margin. Diplazium 

 decurrens, Bedd. F. S. I. t. 229. Diplaz. polypodioides, var. ft, 

 TJnv. En. PL Zey. p. 385. c. p. 3332. Diplaz. dilatatum, var. ft 

 minor, Moore, Index Fil. 327, in part only. 



A very distinct looking fern, and I believe a good species, but I 

 now prefer to follow Mr. Thwaites (who alone can have seen it 

 growing), and consider it a variety of polypodioides. Sir W. Hooker, 

 Sp. Fil. t. 258, has mentioned it under polypodioides as perhaps a 

 distinct spec ; es. Mr. Baker has included it under maximum (Don.), 

 which is otherwise, as far as the Kew bundle is concerned, one of 

 the large forms of latifolium, and Mr. Clarke in his Review has 

 named it Dipl. Schkuhrii, but this was owing to his having received a 

 specimen of it so labelled (evidently by mistake), from Mr. Thwaites. 



Ceylon ; Ambagamwa. 



