UNIVERSITY OF CALIFORNIA PUBLICATIONS 



IN 



BOTANY 



VoL 5, No. 9, pp. 273-292, plate 36 October 4, 1916 



ON THE PARTIAL STERILITY 0¥ NICOTIAN A 



HYBRIDS MADE WITH N. SYLVESTRIS 



AS A PARENT. II 



BY 



T. H. GOODSPEED and A. H. AYRES 



UNIVERSITY OF CALIFORNIA PRESS 

 BERKELEY 



