FOLIAGE LEAVKS: 'I'HE EIGHT-KELA'JTOX 



21 



plant is conical, a form very common iu liei'lis "with entire 

 or nearly entire leaves. In plants whose leaf lilades are 

 broken uj) into leaflets {comjjound or iranclied leaves), 

 however, no such diminution in size toward the toji of the 

 stem is necessary (see Fig. 17), though it may frequently 



Fig. 15. A plant showing much-branched leaves, which occur iu gieat profusiuu willi- 

 out cutting off the light fruui one another. 



occur. When a lirottd hlade is broken up into leaflets 

 the dtmger of shading is very jnucli less, as the light c;in 

 strike through between the upper letiflets and reach the 

 leaflets below. On the lower leaves there will be splotches 

 of light anil shadow, but they will shift throughout the 

 day, so that probably a large part of the leaf will receive 

 light at some time during the day (see Fig. 11). The 



