THE MtTSTAKD I'AMILY. . 193 



of the flower. One has become distinctly anemophilous, 

 although giving plain evidence of having descended from 

 entomophilous ancestors.^ 



SPECIAL STUDIES. 



I. Development of the embryo of cruciferous plants. 

 II. Nectaries of different genera. 



III. Morphology of the flower. 



IV. The fruit and its modifications of form and struc- 



ture. 



V. Form and position of the embryo in different genera 

 of Cruciferse. 



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

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



