78 POLYPODIUM, § PHYMATODES. 



very remote linear and acuminate decurrent at the base, sori 

 large copious oval sunk into a very deep cavity which forms 

 a circular elevated truncated tubercle on the opposite side, 

 occupying the space between the costa and the margin in a 

 single series. — Bl. Fil. Jav. p. 151. t. 65. Metten. Polyp. p. 

 106. ^. 1./. 30 {venation). 



Hab. Java, Blmne, De Vriese and Teijsmmin, n. 8, Thos. Lobb, n. 218. 

 Mount Ophir, Straits of Malacca, Griffiith. — A very handsome and very peculiar 

 species. 



364. P. (Phymatodes) ins'igne, Bl. ; caudex short creeping 

 paleaceous with deciduous ferruginous scales, stipes 1—2 

 inches or more long (according to the length of the decurrent 

 wing of the frond), fronds subtriangular-ovate membranaceous 

 glabrous 4-6 inches long (independent of the decurrent wing) 

 and as much broad subdeltoid deeply pinnatifid with 5-9 

 lanceolate spreading acuminate segments, the base of the 

 frond subcuneate and decurrently attenuated so that the 

 stipes is winged for the greater part or even the whole of its 

 length, venation distinct, costules slender veniform united by 

 transverse veins forming 2-4 series of primary areoles which 

 are filled by a very delicate network forming lesser areoles 

 including free divaricating veinlets, sori very small generally 

 two on each transverse veinlet but appearing to be irregularly 

 scattered. — Bl. Fil. Jav. p. 166. t. 74 [very good). Metten. 

 Polyp, p. 117. P- difFundens, Kze. in Bat. Zeit. iv. p. 422. 

 Drynaria decurrens, Brack. Fil. U. S. Expl. Exped. p. 48. D. 

 palmata, /. Sm. {as relates to Cuming's n. 52; not Polyp, 

 palmatum, BL). 



Hab. Java, Blmne. Luzon, Cuming, n. 52, Brackenridge. — A very distinct 

 species. Small specimens resemble some states of P. tridactylon, Wall., to which, 

 indeed, Mettenius refers Cuming's n. 52. 



365. p. (Phymatodes) bifrons, Hook.; caudex very long- 

 creeping branched and often tortuous naked or only very 

 sparingly clothed with small ovate obtuse blunt peltate scales, 

 fronds scattered dimorphous; sterile ones sessile 3-4 inches 

 long 1 inch at most wide membranaceous glabrous lanceolate 

 attenuated at the base pinnatifid halfway down to the costa 

 with oblong or ovato-oblong ol)tuse segments, venation evi- 

 dent, costules slender veniform running up into the segments, 

 veins anastomosing forming costal parallel oblong areoles 

 with forked free veins and rather large suborbicular ones occa- 

 sionally including a free veinlet ;/er^i/e fronds 4-6 inches long 



