103. SELAGINELLA. AI. MONOSTELICAE. a 4 . ASCENDENTES. 85 



7- Macrospores 1 2 in a macrosporan- 

 gium, without apical ribs, 

 *. Intermedia!, leaves of main rachis 

 not, or at best shortly, cuspidate. 



(53) S. bluuensis. 



<?<?. Intermedial leaves of main rachis 

 rather long-cuspidate. 

 Ultimate branchlets to 4 mm. 

 broad. (54) S. Grabowskyi. 

 . Ultimate branchlets 4 6 mm. 

 broad. (55) S. sibogana. 



7.7- Macrospores 4 in a macrosporangium, 

 with 3 radiating apical ribs. 

 <?. Pinnulae simple. 



(56) S. paraguana. 



<?<?. Largest pinnulae more compound. 

 (57) S. parvifolia. 



/3./3. Lateral leaves of principal rachises auriculate- 

 cordate on the upper side at the base. 



(58) S. Paxii. 



* Lateral leaves of ultimate branchlets 3 5 mm. 

 long. (59) S. ascendens. 



5.5. Intermedial leaves of principal rachises with the outer 

 base not produced, and if so, then not or hardly 

 incurvate-auriculate. 

 e. Branchlets flagettate. 



D Lateral leaves not imbricated over the rachis. 



(60) S. Hosei. 

 DD Lateral leaves imbricated over the rachis. 



(61) S. cavernicola. 

 6.G. Branchlets not flagellate. 



9. Macrospores 1 2 in a macrosporangium, 

 without apical ribs. 



O Lateral leaves of principal rachises 



auriculate-cordate on the upper side at 



the base. (62) S. sungemagneana. 



(63) S. billitonensis. 



00 Lateral leaves of principal rachises 



