THE MUSTARD FAMILY. 173 



of the flower. One has become distinctly anemophilous, 

 although giving plain evidence of having descended from 

 entomophilous ancestors. 1 



1 Cf. M tiller, Fertilization of Flowers, pp. 100-114 ; Hooker, Nature, 

 Vol. X, p. 134 ; Eichler, Bluthendiayramme, pp. 200, 206. 



