300 
Ferns of British India and Ceylon. 
4. DicTYOPTERis DiFFORMis. {Bl. Mfider Polypodiu7n.) Caudex 
stout ascending, stipes tufted, 4 inches to \\ foot in length, black 
setaceous-paleaceous at the base ; fronds subcoriaceous, minutely pel- 
lucid-punctulate glabrous, often subglaucous beneath, pinnate with 
very numerous pinnse, from 6 inches to a foot long, 1-3 inches wide, 
more or less petiolate, broad-oblong, acuminated, the lowest pair 
half-ovate, unequally bipartite, lowest segments deflexed and some- 
times free, and 5-6 inches long, all of them more or less deeply lobed, 
often to within one-third of the costa, the lobes oblong, acute, or 
acuminate entire or sinuate- 
lobate, terminal pinna petiolate 
pinnatifid, costule one to each 
lobe, the veins anastomose 
copiously, forming elongated 
areoles, which are longest near 
the costse and costules, areoles 
frequently including a free 
veinlet; sori dorsal or com- 
pital, or rarely terminal on the 
free veins, copious but rarely 
approaching the costa. Poly- 
podium difforme, Bl. Fil. 
Jav, 135. Hook. Syn. Fil. 
318. Dictyopteris irregularis 
(Fresl.)i Hook. Sp. Fil. v. 
1 01. Bl. Fil. Jav. 164, 
72. Bedd. F. B. I. t. 77. 
Poly podium confluens, Wall. Cat. 325. 
The Malay Peninsula, Tenasserim, Malacca. 
(Also in the Malay Islands.) 
5. Dictyopteris POLYCARPA. {Mett. under Phegopteris.) Stipe 
6 inches long, reddish yellow, slightly pilose upwards ; frond deltoid 
bipinnatifid, 6-15 inches long, pinnae 6 pairs, lowest largest deltoid 
unequal sided, stalked tripartite, central ligulate acuminate crenate, 
