^44 1i. polwodium § 6. pleopbltis b**. PLEOBiDitni. 



1'. Fronds small, under 45 c.M. long. 



;(c. Wiizome scales fibrillose, yellowish. Sort rather large, superficial. 



(185) P. codes. 

 5t:.4c. Rhizome scales lanceolate, pale-brown. Sori rather small, subim- 

 mersed. (184) P. dulitense. 



l'.±'. Fully developed fronds more than id e.M. long. 

 V. Texture membranaceous to papyraceous. 

 S. Rhizome naked. 



5|c. Fronds short-stalked. (18Ba) P. suboppositum. 



iii.it:. Fronds long-stalked. (1856) P. Scortechinii. 



§.§. Rhizome scaly. 



X. -Sort irregularly i — Z-serial. (186a) P. ovatum. 



y..x.S(yiri numerous. (1866) P. ZoUingerianum. 



Jff.Z. Texture chariaceous to coriaceous. 



ar. Fronds commonly ± 2% — 6*/i c.M. broad. (*) 



A'. Stipes narrowly winged; fronds rigid. 



(Ig7) P. millisorum. 

 A'.A'.Stipes not winged, or the fronds not rigid. 



(188) P. punctatum. 

 3'.3'. Fronds commonly broader, ± 6*/s — ^ ^■^- broad. 

 §. Fronds cordate or rounded at the base. 



(189) P. musifolium. 

 §.$. ■ Fronds gradually narrowed at the base. 



jK. Rhizome short, thick. (190a) P. validum. 



^.i^:. Rhizome scandent, slender. 



(1906) P. monstrosum. 



* (167) P. «OStulatnm, Sh., Journ. of Bot., XVIII, 215; Acrosli- 

 chum costulatum, Ces., Pel. Becc. Polin., 5 & 8; Drymoglossum rigidum, Hk., 

 var, longislipilatum, Christ, MS. in Herb. Bog. 



Rhizome wide-creeping, slender, woody; scales erecto-patent, lanceolate- 

 subulate, brownish or bleached, the base roundish, dilated, peltate. Stipes 

 2*/j — 15 c.M. long, those of the fertile fronds the longest, scattered, naked, 

 erect. Fronds dimorphous. Barren fronds ovate or deltoid-oblong, obtuse. 



(*) See also P. monstTosam, Copel. 



