ITKKlliK-K — ITKKIS. 103 



times 45 cm. lonp, .'> cm. hroail, t!ie loweHt forked, scarcely coriaceous, 

 •llahrniis; vein-* <>l>li(|ne, not conspicuous, usually forketl, sori reaching 

 nearly to tlie end of tlie sc^jment. 1 am sceptical as to tliu anastomosing 

 of tlie veins. 



Luzon, <'iiiiiint/ ]():{; Davao, Warbiini 141"i;{. 



Himalayas to .lapan and Polynesia. 



(l.">) P. biaurita 1.. Stipe 30 to (!() cm. lii;:li. strong, erect, naked, stram- 

 ineous; frond with a terminal pinna 1.") to :i(> cm. ion;:, .3 to ."> cm. broad, 

 cut down within al)out .'> mm. of the rachis into numerous s|irea(lin;c linear- 

 oblong lobes; lateral pinna- several pairs, similar to the terminal one, the 

 lowest rather remote and usually once forked, segments entire, obtuse, 

 papyraceous or subcoriaceous, glabrous; veins evident, forming single 

 areohc along the costa of the jiinna but entirely free in the segments. 



i;i/.al. M'inirr 130. 



I'aiit ro]iic. 



P. armata Presl. "Fronds cordate-ovate glabrous glaucescent pinnate, 

 jiinna- ojiposite sessile pinnatifid lowest ones bipartite, segments linear 

 obtuse entire luieijual, terminal one elongate, repand, secondary rachises 

 and costa above spinose, stipes smooth." This is probably /'. qitadriauiita 

 var, sctificra, fitting perfectly \\itli tlie plant from Arayat. 



Sorsogon. fhirnkr. 



(10) P. kieiniana Presl. Total height 2 m.; frond pedately ovate, 

 pinnate; pinme broadly lanceolate, long-caudate, deeply pinnatifid into 

 subfalcate segments, crenate where sterile, submemljranaceous; sori falling 

 well short of the apex of the segments; otherwise like P. hiaurita, with 

 which Hooker and Baker imite it. 



Cagayan-Luzoii. Wurhinfi 11017, 12202. 



India. 



(17,1 P. wallichiana Agardh. Stijx' about l.l cm. high, strong, naked, 

 glossy, bright chestnut brown: frond tri|>artite with lateral divisions 

 again forked, the central often GO cm. long, 30 cm. broad, with niunerous 

 lanceolate, sessile, o])])osite pinnules, the largest of which are l."> cm. long, 

 2 cm. broad, cut down within about 2 mm. of the costa into numerous 

 contig\ious linear-oblong lobes, the sterile ones nearly entire, herljaceous, 

 glabrous; lateral pinme nearh- as large as the terminal one; veins not 

 conspicuous, forming single areolae along the costa between the main 

 veins, rarely another areola at the base of the main vein; sori continuous 

 iijiiiii,' nearly the entire margin. 



Luzon. ('Hilling 204, Lohh 4S1. 



Himalayas to I^Jamoa. 



(18) P. tripartita Sw. Stipe 30 to 100 cm. or more high, strong, erect, 

 naked, polished, stramineous or brownish, like the rachises; frond tripartite, 

 the central jiart (iO cm. or more long; terminal pinna l.^j to 2.') cm. long, 1.5 

 to 30 mm. broail, cut deeply into numerons close, linear or oblong lobes, 

 which are subfalcate and slightly toothed where sterile, herbaceous, glab- 

 rous; lateral pinnip numerous, close, all unbranched ; lateral divisions 

 similar, but shorter and usually branched; veins fine, anastomosing chiefly 

 along the costa and main veins, sori not reaching the apices of the segments. 



