418 



PASTURAGE AND OVEESTOCKING. 



Grape-vine, Polanisia, Button weed, Mignonette, or Reseda 

 (Fig. 183), Teasel, Skunk cabbage, Waterleaf, Hemp, Touch- 

 me-not, Amaranth, Crowfoot, St. Johnswort, and among the 

 trees : Willow, Poplar, which have their sexual organs on dif- 

 ferent trees; Oak, Walnut, Hickory, Beech, Birch, Alder, 



.__^^f^]v':^:^^cWf- 



Fig. 184. 



CRIMSON CLOVER. 



(From Vilmorin-Andrieux.) 



Elm, Hazelnut, Maple, whose organs of reproduction are 

 separated, although on the same tree. 



Horse chestnut. Persimmon, Gum-tree, Dogwood, Button- 

 bush, Cypress, Liquidambar, Linden. 



We should mention also, Ailanthus glandulosus (Varnish 

 tree of China), a large, ornamental tree, which gives an 



