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



■+. + . Fronds + 20 — 45 c.M. long, sessile or shorl-stal li- 

 ed. (15'^j '^- tenuilore. 

 X.x. Fronds broader, + 2\ — 5 c.M. broad when j'u'ihj 

 developed. 

 +. Rhizome naked. Sori 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. 



>K.>tc. Rhizome short-creeping. 



X. Fronds short and broad, spathulate, entire. 



(138) P. antrophyoides. 

 x.x. hronds moderately long and narrow, lanceolate, crennlo- 

 dentate. (139) P. curtidens. 



b.b. Sori in i or sometimes % rows on each side of the costa. 



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



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



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



midrib. (1*0) P- Bakeri. 



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



e. Sori superficial. 



f. Fertile fronds entire or slightly crenate. 



g. Barren fronds narrow, mostly undei^ i c.M. 

 broad, the fertile ones not narrowed m the 

 soriferous part. 

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



(141) P. Wrayi. 

 h.h. Barren fronds ± 6 — dO c.M. long. 



(142) P. Beccarii. 

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

 ^Va — ^ ^■^- broad, the fertile ones narrowed 

 in the soriferous part. 

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



(143a) P. accedens. 



(') See also P. neglectum, M; 



