POLLEN, OR FLOWER-DUST loi 



although some families develoj) two or three 

 well-marked types. P^i^-. 66 shows a pretty pollen- 



Fig. 64. Pcill(_'ii-diist from the e\ening primrose sliowii 

 in various positions 



grain from the flower ot Colnra scandcns, a culti- 

 vated climbing plant, called in its native country 

 the "violet ivy," and allied to the phloxes of our 



