﻿642 71. POLn>ODiuM. § 6. pleopeltis. b*. lepisorus. 



(1646) 1*. isablanianum, Christ, Philipp. Journ., II, 177. 



Near P. myriocarpum, Mett., but: Rhizome scandent, brown, clolhed with 

 slifT, subulate, dark-brown scales. Fronds to ± 73 c.M. long, to ± 5'/2 c.M. 

 broad, : the apex long-caudate, the margin undulate, the base long-decurrent. 

 Texture! membranaceous; colour bright-green; costa light-yellow; venation 

 slender, forming a single row of very large, square primary areolae and an- 

 other row of very narrow, obscure ones. 



Luzon. 



(165) P. gloSfSipes, Bh., Ann. of Bot., V, 476. 



Rhizome wide-creeping, clothed with few, small, squarrose, linear, brown 

 scales. Stipes 3^2 — i c.M. long. Fronds lanceolate-oblong, acute or obtuse, 

 narrowed very gradually at the base, 15- — 20 c.M. long, S'/j — B'/j c.M. broad. 

 Texture chartaceous; surfaces naked; venation as in P. myriocarpum, Melt. 

 Sori globose, superficial, scattered all over the frond. 



New Guinea; Cambodja. 



' (166) P. linguaeforme, Mett., Hk. Bk., Syn. Fil, 358. 

 Rhizome stout, short-creeping. Fronds sessile, 20 — 45 c.M. long, 6—8 

 c.M. broad, tongue-shaped, narrowed from the centre to ^4 of the way down, 

 and then dilated again to a broadly-rounded base, the edge entire. Texture 

 papyraceous ; both surfaces naked ; veins very distinctly prominent, the main 

 ones irregular; areolae subquadrangular, with a single, distinctly inunerscd 

 sorus on free or joined veinlets in the centre of each. 

 „. Luzon, East. Malaya; Polynesia, Melanesia. 



§ 6. PLEOPELTIS. b. Atactosia. *^. Pleurldlnm. 



Sori in i row on each side of the midrib, solitary between the mam veins, 



sometimes confluent. . 



b> Sort superficial, round, rarely oblong. 



c. Barren fronds distinctly shorter than the fertile ones, and much 

 . . . broader, under iO c.M. long. 



a. Fertile fronds .under 6 m.M. broad. (167) P. costulatum. 

 d.d> Fertile fronds broader, 7 — 20 m.M, broad. 



€. Rhizome scales lanceolate, whitish. (168) P. Hellwigii. 



