3 66 



PLANT LIFE. 



FIG. 411. A fruit of Barbadoes cotton, open, exposing the volumindus hairs (commer- 

 cial cotton i which clothe the seeds. Natural size. After Kerner. 



A 

 FIG. 412. FIG. 413. 



FIG. 412. Fruit of Agrimonia, halved; showing torus, carrying calyx and withered 

 stamens above, covered with hooks, and enclosing the hard pericarp, with a single 

 seed. A pistil which did not mature lies to the right. Compare torus in fig. 288. 

 Magnified about 8 diam. After Baillon. 



FIG. 413. Fruit of tick trefoil {Desmodinni Canadense). A , pods which separate into 

 sections, each containing one seed. They are covered with stiff hooked hairs, some 

 of which are shown enlarged at B. A, natural size. B, magnified about 20 diam. 

 After Kerner. 



