628 71. POLYPODIUM. § 6. PLEOPELTIS. b*- LEPISORUS. 



+.+. Fronds + 20 — 45 c.M. long, sa^sile or shorl-slnlh- 

 ed. (134) I*- lenuilorc. 



x.x. Fronds broader, ± 2% — 5 c.M. broad when fully 

 developed. 

 +. Rhizome naked. Sort slightly immersed. 



(135) P. sarawakense. 

 +..+. Rhizome scaly. Sori superficial. 



A. Rhizome scales brown, lanceolate. 



(136) P. superficiale. 

 A. A. Rhizome scales black, roundish, the margin 

 brown. (137) P. peltatum. 



:Ji:.5tc. Rhizome short-creeping. 



X. Fronds short and broad, spathulate, entire. 



(138) P. antrophyoides. 

 x.x. trends moderately long and narrow, lanceolate, crenalo- 

 dentate. (139) P. curtidens. 



b,b, Sori in i or sometimes 2/tows on each side of the casta. 



c. Fronds more or less dimorphous; fertile fronds longer and narrow- 

 er than the barren ones, sometimes much contracted. (*) 

 d. Fertile fronds sfipitiform, the lamina contracted to a mere 

 midrib. (140) P. Bateri. 



d.d. Fertile fronds not slipitiform, the lamina distinctly developed. 

 e. Sori superficial. 



f. Fertile fronds entire or slightly crenate. 



g. Barren fronds narrow, mostly under i c.M. 

 broad, the fertile ones not nairowed in the 

 soriferous part. 

 h. Barren fronds under 5 c.M. Umg. 



(141) P. Wrayi. 

 h.h. Barren fronds ± 6 — iO c.M. longa^ ■^o^o^. 



(142) P. Beccarii. 

 g.g. Barren fronds mostly broader, and then often 

 ^Vi — ^ c-^- broad, the fertile ones narrowed 

 in the soriferous part. 

 X. Barren fronds more than 2 c.M. long. 



(143a) P. accedelis. 



(*) See also P. neglectmn, Bl, 



