COLOR 



141 



Color. Stems are green, yellow, purple, red and brown, 

 and in addition there are dozens of shades and tints. The 

 color of the stems of herbs will vary somewhat with the 

 season. In the fall particularly, the stems are frequently 

 highly colored. 



FIG. 81. Climbing Plant. 1, Wild grape (Vitis cestivalis) ; 2, Virginia 

 creeper (Parthenocissus quinquefolia) ; 3, sweet pea (Lathyrus odoratus) ; 4, 

 wild smilax (Smilax rotundifolid) ; 5, virgin's bower (Clematis virginiana.) 



The color of the stems of woody plants will vary greatly 

 according to the age of the shrub or tree. In white birch, 

 for example, the young branches are of a brilliant metallic 

 red, but, as the tree grows older, the red becomes replaced 

 by gray and finally by white bark. In linden the young 

 twigs are lighter in color than the older forms. In practically 



