112 FILICES. 



late. Pinnae deeply pinnatifid, with linear-oblong, obtuse segments, 

 and a continuous indusium, which has a crenate membranaceous 

 margin. 



* * Frondes pinnatce. 



3. Pteris longifolia, Linn. 



Pteris longifolia, Willd. Spec. PI. 5, p. 369; Kaulf. Enum. Fil. p. 186; Agardh, 

 Gen. Pterid. p. 1 (pro parte). 



Hab. Banos, Luzon, Philippine Islands. 



Our specimens of this, though rather depauperate, accord in all 

 essential particulars with Willdenow's description. But we cannot 

 agree with Agardh, in referring the P. stipularis of Linnaeus hither. 

 The figure of it quoted by him in Plumier's Plantes de l'Amerique, 

 t. 19, appears to us very distinct, on account of the lanceolate stipules 

 at the base of its more approximate pinnae. 



4. Pteris tenuifolia, Sp. Nov. 



P. rhizomate brevi horizontali; stipite semitereti scabro paleaceo-hirsuto ; 

 fronde pinnata ; pinnis sessilibus alternis linearibus sursum attenuatis 

 rnargine revolutis crenato-serratis, basi inoequali superne truncata in- 

 feme subauriculata ; indusio angusto membranaceo stramineo. 



Hab. Tongataboo : in savannas. 



Rootstock short, horizontal, brown, densely paleaceous. Stipe slender, 

 of a straw-colour, from 4 to 5 inches long, half round, and sulcate in 

 front, together with the rhachis slightly rough and paleaceous-hirsute: 

 paleae slender and tapering to a very fine point, reticulated, the meshes 

 linear-oblong and irregular in their length. Fronds broad-lanceolate, 

 a little attenuated at the base, from 15 to 20 inches long, pinnate. 

 Pinnw sessile, alternate, spreading, straight, about an inch apart, from 4 

 to 5 inches long by 2 to 3 lines broad, linear, and gradually narrowing 



