103. SELAGINELLA. .V". PLEIOSTEfclCAE. 197 



+ Loroer axillary leaves round- 

 ish, small. 



(188) S. Willdenowii. 



++ Loioer axillary leaves elongate, 



large. (175) S. Hewittii. 



9.9. Leaves pellucid-margined by rotes 



of sclerotic cells. 



n Loiver axillary leaves cordate- 

 rotundate or deltoid-ovate, 

 broadest at or near the base. 

 (176) S. furcillifolia. 

 DD Lower axillary leaves round- 

 ish-oblong, broadest at the 

 middle. 



O Ultimate branchlets under 

 7'/2 mm. broad including 

 the lateral 'leaves. 



(177) S. latupana. 

 OO Ultimate branchlets more 

 than VI2 mm. broad in- 

 cluding the lateral leaves. 

 (203) S. maxima. 

 OOO Lower axillary leaves obovate, 

 broadest near the apex. 



(190) S. plana. 

 3.3. Axillary leaves elongated, not relatively very large ivlien com- 

 pared with the lateral leaves. 



«. Pinnulae simple or forked, at best the largest subpinnafe. 

 b. Lateral leaves with the loicer base adnate. 



(178) S. viridangula. 

 b.b. Lateral leaves tvith the lower 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 branchlets not 



calcarate. (180) S. Nymani. 



