no longer contain nectar, and consequently vi: 

 in the same time. Repeated observations by 

 to show that the color change in Diervilla 

 significance. The honeybee was observed 

 flowers both when solitary and when associ 

 flowers. Neither was there any preference n: 

 low flowers, when flowers of both colors occu 

 cyme. An immense number of varieties of YV 



The herbaceous order Valerianates is inter 

 the Rubiales and the Campanulales. The flow 



The inflorescence of the Dipsaceae, or teasel fa 

 ucrate, purplish heads, and is attractive to a g 



purple, scarlet, or white. 'The distinct anthe 

 ovule separate this family from the following or^ 



The Cucurbitaceae, or gourd family, were 

 with the ChoripetaLx, but are now placed in the 

 lales with the Campanulacex and Composite, 

 herbaceous, tendril-bearing vines found chiefly 

 The petals are separate or united. The sm? 

 this family are white or greenish and the larger 



