103. SELAGINELlLA. A 2 . . PLEIOSTELICAE. 197 



+ Lower axillary leaves round- 

 ish, small, 



(188) S. Willdenowii. 



+4- Lmcer axillary leaves elongate, 



large. (175) S. Hewittii. 



9.9. Leaves pellucid-margined by rows 



of sclerotic cetts. 



D Lower axillary leaves cordate- 

 rotundate or deltoid-ovate, 

 broadest at or near the base. 

 (176) S. furcillifolia. 

 DO Lower axillary leaves round- 

 ish-oblong, broadest at the 

 middle. 



O Ultimate branchlets under 

 7Y mm. broad including 

 the lateral leaves. 



(177) S, latupana. 

 OO Ultimate branchlets more 

 than 7V mm. broad in- 

 cluding the lateral leaves. 

 (203) S. maxima. 



DDD.L0ttw axiUary leaves obovate, 

 broadest near the apex. 



(190) S. plana. 

 3.3. AxiUary leaves elongated, not relatively very large when com- 



with the lateral leaves. 



Pinnulae simple or forked, at best the largest subpinnate. 

 b. Lateral leaves with the lower base adnate. 



(178) S. viridangula. 

 b.b. Lateral leaves with the lotcer base not. adnate. 



c. Stems rough, or velutinous and finally roughish. 

 d. Lateral leaves of principal rachises calcarate- 

 auriculate on the upper side at the base. 

 e. Lateral leaves of ultimate branchlets also 

 calcarate. (179) S. gracilis. 



e.e. Lateral leaves of ultimate branchlels not 

 calcarate. (180) S. Nymani. 



