SECT. II 



PHANEROGAMIA 



493 



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

 arrangement can thus only he shown in ground plan. 

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

 BosTRYX (Fig. 449 F). 



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Fm. 449.—^, Rhipirtium from the side; B, rhipidiuin in ground plan; (', diepaniuni from the 

 side ; D, ground plan of drepanium ; E, ground plan of dichasium ; F, ground plan of bostryx • 

 G, ground plan of cincinnus. i-W, successive, relatively main axes. 04-D, after Eichler.) ' 



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

 axis ; Cincinnus (Fig. 449 F ; Fig. 451, a double cincinnus). 



Floral-ceeology C) 



Many differences in the structure of flowers and in the arrange- 

 ment of their organs which would otherwise be doubtful, are explained 

 when brought into relation to the functions performed by the flower. 



