266 29. LINDSAYA. § 2. EULINDSAYA. 



9.2. Fronds i\ c.M, broad or broader when fully developed ('). 

 3. Fronds to 15 c.M. long. 



$, Indusium continuous or interrupted, not undulate. 

 * Fronds to about i'/^ cm. broad. 



(15) L. montaua. 

 ^^ Fronds about 2 cm. or more broad. 



X. Leaflets blunt. (16a) L. humilis. 



x.x. Leaflets acute. (16t) L. falcata. 



$.§. Indusium continuous, undulate. (17) L. crispa. 



3.3. Fully developed fronds more than 15 c.M. long. 

 4L. Rhizome short-creeping. 



5^. Texture membranaceous. (18a) L. cultrata. 



>(c.;(c. Texture coriaceous. (186) L. crassipes. 



<t.S:. Rhizome firm, scandent. 



S. Leaflets crenate; sori interrupted. (19) L. pectinata. 



S.S. Leaflets entire; sori continuous. (20) L. scandens. 



1.1. Fronds branched, i.e. 2-pinnate or 3-pinnatifid (^). 

 S'. Veins flabellate. 



>(?• Leaflets (pinnulae) 5 — 8 m.M. broad. (21) L. orbiculata. 



;|<.;<c. Leaflets (pinnulae) 10 — 15 m.M. broad. (22) L. gomphophylla. 

 S'.S'. Veins not flabellate. 



3. Branches of the fronds mostly under 2 c.M. broad. 

 $. Leaflets (pinnulae) entire, crenate or toothed. 



f . Sori not in a continuous submarginal line. 



(23) L. tricrenata. 



t.•^. Sori in a continuous submarginal line. (24) L. borneensis. 



8.S. Leaflets (pinnulae) bluntly, not deeply lobed. (25) L. rigida. 



3.3'. Branches mostly 2 — 4 c.M. broad; leaflets (pinnulae) not entire. 



A'. Leaflets dimorphous. (26) L. impressa. 



^'.A'. Leaflets uniform. 



S. Fronds rather small, to +30 c.M. long, the branches 



+ 3 — 4-jugate, to_ 15 c.M. long. (27) L. natunae. 



S'.S'. Fronds rather large, to ± 50 c.M. long or longer, the 



branches + 5~6-jugate, to 40 c.M. long: (28) L. longissima. 



3'.3'.3'. Branches mostly 4 c.M. broad or broader; leaflets (pinnulae) 



entire. (29) L. lancea. 



(') See also I>. conclnna, J. Sm. 



(') See also li. pectinata, Bl. & scandens, Hk. 



