1i. POLYPODIUM. § 6j PLEOPELTIS. C*. PHYMATODEiS. 6^^ 



3.3. Stipes short-winged. Fronds as in 3.3.3. 



(2026) P. dolichopterum. 



3.3.3. Stipes long-winged. Fronds typically pinnatifid with 3 



or more pairs of lateral segments below the terminal one. 



4L. Fronds small or middle-sized, less than 40 c.M. 



long above the wing of the stipe. Rhizome scales 



linear or lanceolate. 



S. Rhizome scales sparse. 



e. Rhizome fleshy. (203a) P. rivulare. 



e.e. Rhizome woody. (2056) P. pentaphyllum. 



S.S. Rhizome scales crowded. (204) P. insigne. 



S:.S:. Fully developed fronds large, more than 40 cM. 



long. (205) P. dilatatum. 



a.n. Sori more or less deeply immersed. (') 



b'. Fronds dimorphous. Barren fronds with the segments lanceolale-oblong, 

 fertile with the segments narrowly linear. (206) P. incurvatum. 



h'.h'. Fronds uniform, rarely subdimorphous. 



c'. Fronds + as broad as long, the lower lobes deflexed. 



(207) P. macrochasmum. 

 c'.c'. Fronds distinctly longer than broad. 

 d'. Sori shallowly immersed. (^) 



i(.. Fronds under i M. long. (208a) P. phymatodes. 



'ifi.ifi. Fronds more than i M. long. 



(2086) P. phanerophlebium. 

 d'.d'.Sori deeply immersed. 



e'. Lateral segments in + ,2 — iO pairs. 



X. Under surface pale-violescent. Fronds + i5 c.M. 



long. (209) P. violascens. 



x.x. Under surface green. Fronds 4^20—90 c.M. long. 



(210) P. nigrescens. 

 e'.e'. Lateral segments in many or numerous pairs. 



f. Texture thinly papyraceous; segments acuminate. 



(211) P. Schneideri. 

 f.f. Texture firm ; segments acute to blunt. 



(212) P. longissimum. 



(*) See also P. commatatum, Bl. 

 {') See also P. longissimum, Bl. 



Fhjces. 42 



