308 



WALDRON— THE PEANUT 



more xerophytic. Thus the possibility is suggested, first, that the cul- 

 tivated bunch varieties are derived from such a species as A. pusilla 

 and second, that the prostrate varieties are derived Jrom A. prostrata. 

 Other evidence in support of this theory is seen in the marked differ- 

 ence in the histology of the fruits of the two domesticated varieties. 



Figure 3 (after Dubard) 

 Types of peanuts taken at random from 



1. Tombs at Ancon, Peru. 



2. Java. 



3. Tonkin. 



4. Madagascar. 



5. Madagascar. 



6. Spain. 



7. Dahomey. 



8. Senegal. 



9. Spain. 



The following summary taken from Dubard further indicates the 

 possibility of our present day varieties being derived from two such 

 wild plants. He states that there were two types of peanuts dis- 

 tributed over the world from South America; one being a two- 

 seeded Brazilian type and the other a three-seeded Peruvian type. 

 The first form was carried to West Africa by Portuguese negroes, 



