94 TEXTBOOK OF BOTANY 



REFERENCES 



Coulter, J. M., C. R. Barnes, and H. C. Cowles. Textbook of Botany. Vol. 3, 

 Ecology. American Book Company. 1930. ( For additional illustrations. ) 



Good, Ronald. Plants and Human Economics. Cambridge Univ. Press. 1933. 

 Pp. 69-161. 



Hill, A. F. Economic Botany. McGraw-Hill Book Company, Inc. 1937. 



Medsger, O. P. Edible Wild Plants. The Macmillan Company. 1939. 



Muenscher, W. C. Poisonous Plants of the United States. The Macmillan 

 Company. 1939. 



