84 103. SELAGINELLA. A\ MONOSTELICAE. a 4 . ASCENDENTES. 



O Spikes slender, 1 l l / 2 mm. diam. 



(46) S. Gregory!. 



OO Spikes stouter, Vlt2 mm. diam. 

 x Lateral leaves entire or subentire 

 towards the apex. 

 -=- Lateral leaves spuriously 

 nerved. (47) S. similis. 



-f-f Lateral leaves not spuriously 

 nerved. (48) S. Moszkowskii. 

 T^X Lateral leaves minutely denticu- 

 late towards the apex. 

 -I- Lateral leaves of main rachis 

 rotundate-cuneate on the 

 lower side at the base. 



(49) S. Wigmanii. 

 -f-^ Lateral leaves of main rachis 



not rotundate-cuneate on the 

 lower side at the base. 



(50) S. Copelandii. 

 d.d.d. Lateral leaves more than 4 mm. long. 



(51) S. grandis. 



3.3. Lateral leaves of the main rachis entire or at best minutely 

 denticulate-serrulate. 

 &. Ultimate branchlets 10 20 mm. or more broad. 



O Lateral leaves crowded on both stem and branches. 



(9) S. alopecuroides. 



OO At least lower lateral leaves of main rachis spaced. 



(52) S. magnifica. 

 4.J. Ultimate branchlets 1 10 mm. or less broad. 



5. Intermedial leaves of principal rachises with at least 

 the outer base produced and distinctly incurvate- 

 (hamate-)auriculate ('). 



a. Lateral leaves of ultimate branchlets to 3 mm. 

 long. 



p. Lateral leaves of principal rachises cuneate 

 or rounded on the upper side at the base. 



See also (62) 8. sungemagncana and (63) 9. billttonensls r. A. r. H. 



