CONTRIBUTIONS TO THE BOTANICAL MAGAZINE. 679 



to the true explanation of the structure of Lysipoma. This 

 genus, belonging to Lobeliacece, is described by M. Kunth 

 as having a single parietal placenta ; it may, however, be 

 regarded as having a septum so closely pressed to the upper 

 side of the capsule as to have no manifest cavity, and con- 

 sequently produces ovnla on the one side only." Brown 

 MSS. 



Bot. Mag. 2598 (1825). 



Bceckia camphorata, Brown MSS. 



Bot. Mag. 2694 (1826). 



