STERILITIES OF WILD AXD ("ULTIVATED POTATOES. 



21 



T.\BLE '6.— List of potato varieties studied, showing the class to which each is assigned 

 with respect to the condition of its anthers and pollen and to its ability to produce seed 

 balls — Continued . 



* Numbers 3 to 59 were grown in the field, 2-1 to 11-15 in the greenhouse. 



