622 



Sir John LuhhocJe 



[Feb. 18, 



Other species possessing the same faculty of burying their seeds 

 are Olienia hypogcea, several species of Commelyna, and of Amplmar- 

 pcea, Voandzeia subterranea, Scroplmlana arguta, &c. ; and i* ^^ ^^^y 

 remarkable that these species are by no means nearly related, but 



Fig. 19. 



Lathyrus amphicarpos. (After Sowerby.) 

 a, ordinary pods ; h, subterranean pods. 



belong to distinct families, namely the Cmciferce, Legiminosm, 

 Commelynacece, Violacece, and ScropliuJariacece. ^ ^ 



Moreover, it is interesting that in L. amphicarpos, as m Vicia 

 amphicarpa and Cardamine clicnopodi folium, the subterranean pods 

 differ from the usual and aerial form in being shorter and containing 

 fewer seeds. The reason of this is, I think, obvious. In the oi-dmary 

 pods the number of seeds of course increases the chance that some 



