Bui. U^S, U. S. Dept. cf Agriculture. 



Plate VIII. 



Fig. I. Good Seed-Ball Production in Response to Open Pollination 



IN Seedling 39477. 



FiQ. 2. Solanum chacoense. Plant C 20. 



SppH l)allsr(>,siilliii^' fr<ini crossiiiK with plnnl (' IS which is hK'hlv S'lf-iiicompiilibleaiifl alsocross- 

 liicinnpiilihln to several plants. .See TuMr 1. 



