A WILD TEOSINTE PLANT IN CENTRAL MEXICO 

 In the- study of itu- ()ri^;in iUKi liistoiy of m.ii/c or Indian corn, ttosintc has, in recent years, 

 come to play an important role. It is the nearest wild relative of maize \el discovered, and a 

 possible ancestor of that species. Two types t)f teosinle ha\e i)een found in Mexico; one annual, 

 and the othir perennial, in < haracter. Assuminj^ that both are descended from a common s^ock, 

 it seems reasonable to heliexc that the jurennial form most closely approximates this common 

 ancestor. The plant here shown, which is urowin^j beside a small irrigatint; canal at .Xnavacuydn, 

 Durango, Mexico, is of the annual type. (Frontispiece.) 



