1 86 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. Horf. 
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. 1. 293. Asplenium 
marginatum, Wall. Cat. 391, 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 subtomehtose, but does not 
otherwise recede from the type, he says it is confined to the cen- 
tral Himalayas. His variety " sublatifolia " runs into " latifoha," 
and rather belongs to that species, if the two are really distinct, which 
is very doubtful, his variety "effusior" is D. umbrosum, var. 
multicaudata. 
(Also in AustraHa.) 
Var. /3 DECURRENS. (Bedd.) Pinnae more deltoid in form 
with the secondary pinnae 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 
w^hole length of the veinlets, and e-xtending to the margin. Diplazium 
decurrens, Bedd. F. S. I. t. 229. Diplaz. polypodioides, var. /3, 
Thiv. En. PI. Zey. p. 385. c. p. 3332. Diplaz. dilatatum, var. /3 
minor, Moore., Bidex 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 lati folium, and Mr. Claike 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 ; Ambagamwn. 
