Ferns of British India and Ceylon. i8i 
the rhizome creeping, though it is generally erect ; in lasiopteris and 
* Thwaitesii it is wide creeping. I have seen nothing like Mr. Clarke's 
variety chattagramica, with bipinnate fronds, the secondary pinnae 
petioled and the rachis not winged, and can hardly fancy it belongs 
here, the specimen could not be found at Kew, but from the figure 
in Clarke's Review, it appears to be one of the numerous forms of 
latifolium and perhaps the same as the one he calls succulentum. 
Mr. Clarke is quite wrong in referring Schkuhrii Thwaites here, he 
did so on a specimen of my decurrens, wrongly named Schkuhrii, 
but decurrens (which is Thwaites's polypodioides var. /3 c. p. 3332, ' 
and Moore's dilatatum, var. /3 minor), can have no place here. 
Madras Presidency, on the Western ghats, the supposed 
lasiopteris at Ootacamund, 7,000 feet, and Poombary on the Pulneys, 
7,000 feet ; decussatum on the Tinnevelly Hills and Jeypore Hills, 
West of Vizagapatam, 3,000-4,000 feet. Ceylon, central provinces; 
N. W. Himalayas; Nepal; Nynee Tal; Kangra; Kumaon; Khasya, 
3,000 feet ; Malay Peninsula. 
(Also in Japan, China, and Polynesia.) 
13. DiPLAZiuM Schkuhrii. {TJiwaites^ Caudex erect ; scales 
dense, small, lanceolate, dark-brown; stipes 9-18 inches long, 
naked ; fronds deltoid-lanceolate, up to 2 feet long, bipinnate below, 
bipinnatifid above ; pinnae alternate, lower ones distant, 6-8 inches 
long, by \\-2 inches broad; rachis winged; pinnules distant, sessile 
ligulate-oblong, ■ all very regular in shape, |-|- inch long, inch 
broad, pinnatifid about \ down into rounded lobes ; texture rather 
firm ; surfaces glabrous, bright-green ; veinlets simple or pinnated in 
the lobes ; sori linear, generally reaching from the midrib to the 
sinus between the lobes, double or single. In younger plants or 
smaller specimens, the fronds are often pinnate only, i.e.^ the 
primary pinnae only pinnatifid half to two-thirds to the rachis. 
Thw. En. PL Zey. p. 385. {^Not Mett. or J. Sni. 7vhich is only a 
form ^sylvaticum.) Hook. Syti. Fil. p. 491. Bedd. F. S. I. t. 230. 
Ceylon ; central provinces. 
^ 14. DiPLAZiuM soRZOGONRNSE. {Presl) Stipcs tufted, scaly 
