I.] 



THE DAISY. 



less flat disk renders it much more accessible than in 

 those cases in which it is situated at the end of a more 

 or less long tube. That of the Deadnettle, for instance, 

 is only accessible to certain humble bees ; while H. 

 Mliller has recorded no less than seventy-three species 

 of insects as visiting the Common Chervil, and some 

 plants are frequented by even a larger number. 



FIG. 23. 



FIG. 24. 



FIG. 22. Floret of Chrysanthemum parthcnium, just opened. 

 FIG. 23. Ditto, somewhat more advanced. 

 FIG. 24. Ditto, with the stigmas expanded. 



In the Composites, to which the Common Daisy and 

 the Dandelion belong, the association of flowers is 

 carried so far, that a whole group of florets is ordi- 

 narily spoken of as one flower. Let us take, for in- 

 stance, the Common Feverfew, or large white Daisy 

 (Chrysanthemum parthenium, Figs. 22 24). Each 

 head consists of an outer row of female florets in 



