71; POLTPODIUM. ^' 6. PLEOPELTIS. b**. PLEURIDIUjl. 6S^ 



(190a) I». validam, Cepel., Polypbd. Philipp., 126. 



Rhizome short, thick, the scales ovate, adpressed, obtuse^ cordate or pel- 

 tate. Fronds tufled, nearly sessile, + 70 c.M. long, 10 c.M. or more broad, 

 lanceolate, entire, subacute, narrowed gradually to the base, the lower '/s part 

 wing-like, the margin entire. Texture carnoso-coriaceous, fragile; surfaces 

 naked; main veins fine, reaching nearly to the margin; transversal veins pa- 

 rallel to the costa, forming + 7 rows of divided areolae on each side, with- 

 free veinlets. Sori numerous, scattered irregularly. 



Philippines. 



(1906) P. nkonstvosnm, CopeL, Leaf!., I, 78; — var. leucophlebi- 

 um & iiitegrius (mitegriore), Copel., 1. c. 



Rhizome scandent, slender, clothed with dark-grey, lanceolate, acuminate 

 scales, which are peltate at the base. Stipes % — 1 c.M. long, naked. Fronds 

 30^50 c.M. long, 4 — 7 c.M. or more broad, narrowed gradually towards both 

 ends, acuminate, the edge coarsely crenate or lobed, with the central lobes 

 whether or not much produced. Texture subcoriaceous ; surfaces naked; costa 

 prominent, beneath acute, above 2-angular in the upper part ; main veins 

 conspicuous, blaok , reaching nearly the margin ; transversal veins + 6, incon- 

 .spicuous; veinlets hidden. Sori crowded, scattered irregularly. 



Var. leucopblebinm : Fronds often naVrowed and rather entire ; 

 veins beneath white. 



Var. integrias: Hardly different from var. leucophlebium, the 

 fronds crenato-sinuate. 



Luzon, Mindoro. 



Species of an uncertain iyslematical place. Sori unknown. 



(191) P. IVeinlaiidii, Chrtatf, Bull. Herb. Bois., 2« S6rie, I, 448, 

 with figure. 



Rhizome long, creeping, the bristles subulate, brown, dense, subadpressed. 

 Stipes distant, 3—6 c.M. long, firm, densely covered like the whole frond with 

 simple, white, diaphanous, spreading hairs. Fronds ovate-elongate, 7—10 

 c.M. long, ± 4 c.M. broad, shortly acute or obtuse, the base broadly cuneatCj 

 the margin undulate or repand. Texture coriaceous; colour pale-brownish; 

 veins very conspicuous; costa prominent; main veins oblique, reaching to the 

 margin; areolae subquadrangular, large, 3 — 4 between each pair of main 



