86 103. SELAGINELLA. A\ MONOSTELICAE. a*. ASCENDENTES. 



rounded or cuneate on the upper side 

 at the base. 



X Lateral leaves not spuriously veined. 

 -f Ultimate branchlets short, un- 

 der 4 mm. broad. 



(64) S. Vanvuureni. 

 -^-^ Ultimate branchlets long, or 

 more than 4 mm. broad. 



(65) S. subserpentina. 

 'a'a Lateral leaves spuriously veined. 

 •I- Shoots simply pinnate. 



(66) S. sambasensis. 



•I- -I- Shoots more compoundly 



branched. (54) S. Grabowskyi. 



t.t. Macrospores 4 in a macrosporangium, with 



3 radiating apical ribs. 



9. Lateral leaves of branchlets to 2 mm. 



long. (67) S. Elmeri. 



8.S. Lateral leaves of branchlets 2 mm. or 



more long ('). 



9. Upper edge of lateral leaves denti- 

 culate in the loioer part only. 



(68) S. obesa. 

 9J9. Upper edge of lateral leaves denti- 

 culate more throughout. 

 -f Small plants. 



(69) S. wahauensis. 

 -^4- Large or middle-sized plants. 

 A Pinnulae simple, forked or 

 simply pinnate. 

 = Lateral leaves not spu- 

 riously veined. 



(70) S. Posewitzii. 

 == Lateral leaves spuri- 

 ously veined. 



(71) S. Cesatii. 



(1) See also (38) %. halconensis Hieron. 



