54 
DiPLAZiUM (continued.) 
4. Diplazium pohjpodioides. (Metten.) Caudex erect, often a trunk, stipes and racliis more or less prickly and scaly, frond-i 
very large, coriaceo-membranaceous, bi-pinnate with the pinnules more or less deeply pinnatifid, often nearly down to the rachis, primary 
pinnae (at least the lower ones) petiolate, ovato-lanceolate, acuminate 8 inches to nearly 2 feet long, pinnules sessile or sub-sessile, 3-5 
inches long, i to 1 inch broad, oblong broader at the base and gradually attenuate to the acuminated apex, segments oblong-parallelogram, 
or slightly falcate obtuse, crenated or serrated ; veins simple or forked, extending to the margin, sori one to each vein, on each side of 
the costa touching the costa, but not extending to the margin, generally only one of the lowest ones double. Metten. Fil. Ilort. Lips., p. 
78; — Diplazium frondosum, WalUch ; — Aspl. ambiguum, Hook, et Arnt. Bot. of Beech — Voy., p. 107; — Diplaz. nigro-paleaceum, Kze, 
in Liiinoea xxiv, p. 270 ; — Asplen. Fieldingiana, Kze. in Liniicea xxiv, })■ 268 ; — Diplaz. asperum, Metten and Blame. 
Very abundant in most mountainous parts of the western side of the presidency. In some parts of the Anamallays, it is quite 
a tree fern. 
PLATE No. CLXm. 
* Veins conniveiitJy ayiastoinosing. 
Callipteeis, Bori/. Toy. i. 282. 
(Anisogonium, PmV. ; Digrammaria, //coA-. (not Presl.J; Microstegia, Presl. ; Aspleuii sp. Auct ; Diplazii sp. Auct ; Oxygoui 
sp. J. Smith). 
Sori indusiate linear, all or the lowest only double, i.e., the receptacles occupying both sides of the veins. Indusium narrow 
membranaceous plane or fornicate, in the double sori affixed in pairs back to back on opposite sides of the same venule, one opening, 
anteriorly, the other posteriorly ; in the simple sori as in Asplenium. Veins forked or pinnate from a central costa ; venules anastomo:!- 
ing irregularly at an acute angle, or each opposite pair uniting between the primary veins in superposed acute sub-triangular areoles, the 
marginal or superior veinlets free. 
Fronds herbaceous or coriaceous, pinnatifid, pinnate, or bi-tri-pinnate, sometimes proliferous. Rhizome short, erect. Large 
growing ferns only distinguished from Diplazium by the conuivently anastomosing veins which are analagous to those of Nephrodium 
(in Aspidieoe) and Goniopteris (in Polypodieoe.) (Moore). 
1. CaUipterls esculenta. (Houlst. et Moore.) Caudex stout, erect, very scaly at the summit, stipites tufted, stramineous-brown, 
angled ; fronds ample broad, oblong acuminate bi-pinnate, below pinnatifid, in the middle simply pinnate, terminal pinna; large, pinnatifid 
at the b;ise, primary lateral pinnae li-2 feet long, petiolate horizontal oblong acuminate, pinnules distant horizontal sessile, or shortly 
petiolate from a broad truncate frequently hastate base oblong gradually acuminated 4-6 inches long, varying in breadth entire or serrated, 
or variously and regularly lobed or pinnatifid at the margin, most so at the base, the lobes obtuse, serrated, veins very patent, fasciculate 
pinnate, the branches uniting with those of the opposite fascicle, sori copious on the veinlets rather short, linear decussate often diplazioid, 
and at length confluent, involucres narrow, brown membranous, costse beneath often squamuloso-furfuraceous. Hook. Sp. Fil. iii, 268 ; — 
Houlst, et Moore, Gard. Mag. Bot., iii, 265 ; — Callipteris ambigua, Moore ; — Callipteris Malabarica, J. Sm. Hook. Joimi. of Bot., iii, 409 ; — 
C. Serampureuse, Fee Gen. Fil. 219 ;— C. Wallichii, J. Sm. ;— Asplenium ambiguum, Sw. ;— A. esculentum, Fresl. ;— A. bi-pinnatum, 
Boxb. Cal. Journ. Nat. His., iv, 499 ;— A. Moritzii, Metten ;— Anisogonium esculentum, Presl. ;— Digrammaria esculenta, Fee /—Diplazium 
Malabaricum, Spreng ; — Hemionitis esculenta, Konig. M. S. Herb. Brit. Mas. ; — Microstegia ambigua esculenta et pubescens, Presl. 
Epim. Bot. 91-91-2G0. 
Verj' common in moist places and banks of streams in the plains throughout the western side of the presidency — Nilgiris and 
Anamallays — banks of streams, &c., at no great elevation. 
PLATE No. CLXIV. 
(TRIBE 1, § 15,) POLYPODIEOE. 
PoLYPODiUM, Linnaeus, Gen. PI. 784, (reduct). 
(Psidopodium, Necker ;— Marginaria, Bory ;— Cryptosorus, Fee Cenopteris, Blume ;— Dicranopteris, Bl ;— Adenophorus, 
Gaudichaud ; — Amphoradenium, Desvaux ; — Pliegopteris, Presl. ; — Pseudathyrium, Newman ; — Gymnocarpium, Newman ;— Gymuodiuai, 
