113 



PiECILOPTERIS COSTATA. (Wall.) Caudex creeping, subulato-paleaceous, stipites 1-1J and more feet long, striated 

 and often here and there rusty-furfuraceous, fronds 1-1 \ or more feet long, coriaceous or subcoriaceo-membranaceous, very pale-green 

 pinnated, pinnae petiolate of the sterile frond 7-10 inches long, 1-2 inches broad, oblong acuminate, obtusely and obliquely cuneate at 

 the base, entire sinuato-crenate at the margin, costules horizontal, and costa prominent beneath, primary veins arched and forming three 

 or four or more series, (according to tin breadth of the pinnae) of very irregular but sub-transverse large areoles, within which are lesser 

 deltoid areoles, including two or more clavate free veinlets, free veinlets also at the margin j pinnae of { the fertile fronds generally smaller, 

 2-3-6 inches long, more°coriaceous but nearly o£ the same form, wholly or partially soriferous, the margin sometimes reflexed, costules 

 very distinct and prominent beneath, venation less compound. Hook. Sp. Fit v. 262. 



Var. a, rubicunda ; pinnae very large, subcoriaceous often finely acuminated, 8-12 inches long, frequently deeply tinged with 

 purple-red wholly soriferous beneath, fertile ones 6-9 inches long, \ an inch wide;— A. costatum, Walh Cat. n. 26 j—Cyrtogonium, 

 J. Sm. ;•— Poecilopteris, Moore ;— Campium, Pr. 



The specimen figured is from Assam— (Dr. Thomson). 



Hab, Nepal, Sylhet, Assam, Khasya, Kumaon, and Chittagong, 



PLATE No. CXni. 



