PLATE 14 

 Late rosette stage of Chinese colza seedling: 



A. — Usual form. Three and one-half months old. Grown in greenhouse. Planted 

 September 27, 1916. 



B. — Plant showing a variation in lobing of the leaves. Two months old. Grown 

 in field at Yarrow Station, Md. Planted May 16, 1917. 



