512 



BOTANY 



(b) Each relatively main axis bears two lateral branches ; DICHASIUM (Figs. 494 K, 

 495). 



(c) Each relatively main axis bears one lateral branch ; MONOCHASITM. 

 1. The successive lateral axes all fall in the median plane. 



(a) all the branches arise on the same side ; DREPAKITM (Fig. 494 C, D). 



a 



FIG. 494. A, Rhipuliiun from tlin .side; , rliipiiliuin in KTOU'X' jilan C, Drepanium from {the 

 side ; D, ground plan of drepanium ; K, ground plan of dichasium ; F, ground plan of bostryv : 

 G, ground plan of cincinnus. 1-10, successive, relatively main axes. (A-D, after EICHLER.) 



() branches alternately right and left ; RHIPIDIUM (Fig. 494 A, B ; Fig. 



?46, Iris). 



2. The lateral axes are transverse to the relatively main axis ; their arrange- 

 ment can thus only be shown in ground plan. 



(a) lateral axes always falling on the same side of the relatively main axis ; 

 BOSTJIYX (Fig. 494 F). 



(P) lateral axes falling alternately on opposite sides of the relatively main 

 axis ; CINCINNUS (Fig. 494 F, Fig. 496, a double cincinnus). 





