390 



VEGETABLE PHYSIOLOGY 



the plant allowed to recover from the effects of the injury, 

 subsequent stimulation of an adjacent leaf causes water to 



FIG. 160. SECTION OF STEM OF DICOTYLEDONOUS PLANT ATTACKED BY 

 HAUSTOKIA OF Cuscuta. 



exude from the cut surface of the pulvinus. The cases 

 of the irritable stamens and stigmas are probably to be 



