HOW TO STUDY PLANT LIFE 81 



the stigmas opened out to catch any pollen that 

 insects might drop after visiting younger 

 florets. 



After fertilization the ray florets wither and 

 the corollas, stamens, and stigmas of the disc 

 gradually fade and fall off, for they have ful- 

 filled their purpose, and the little seeds, or more 

 properly achenes, are left, each crowned with 

 its plume of tawny hairs (Fig. 11). As the 

 receptacle dries, their attachment becomes 

 looser until at last they are entirely free and 

 ready to be carried off by any passing breeze 

 the plume of hairs acting like a little parachute 

 to assist in this process and to begin life for 

 themselves. 



EXERCISE III. 



Make a rough drawing of a Kobin's Plan- 

 tain, including the root, runners, lower leaves, 

 flower-stems, and flower-heads, marking each 

 (from memory) after the style of Plate III. 



EXERCISE IV. 



Draw the following parts of the plant sev- 

 eral times their exact size, using the magnify- 



