40 



DESCRIPTION OF PLATE II. 



[Figures all natural size.l 



Fig. 1. — Learning Yellow: Anterior and posterior views of kernels. 



Fig. 2. — Champion "White Pearl: Anterior and posterior views of kernels. 



Fig. 3. — Sto well's Evergreen: Anterior and posterior views of kernels. 



Fig. 4. — Kernels of Stowell's Evergreen, showing xenia from crossing with pollen 

 of Champion "White Pearl. (Comjiare with male parent, fig. 2, and female parent, 

 fig. 3.) 



Fig. 5. — Kernels of Stowell's Evergreen, showing xenia from crossing with pollen 

 of Learning Yellow. (Compare with male parent, fig. 1, and female parent, fig. 3.) 



Fig. 6. — Gilman Flint: Anterior and posterior views of kernels. 



Fig. 7. — Kernels of Gilman Flint, showing xenia from crossing with pollen of 

 Stowell's Evergreen. (Compare with male parent, fig. 3, and female parent, fig. 6.) 



Fig. 8. — Black Mexican: Anterior and posterior views of kernels. 



Fig. 9. — Kernels of Black Mexican, showing xenia from crossing with pollen of 

 Gilman Flint. ( Compare male parent, fig. 6, and female parent, fig. 8. ) 



Fig. 10. — Kernels of Stowell's Evergreen 9 X Black Mexican $ (experiment 

 15b), which are white and transparent, resembling the mother parent. 



Fig. 11. — Kernels of Stowell's Evergreen 9 X Black Mexican $ (experiment 

 15b), showing xenia in the blue-black color impai-ted to the aleurone layer of the 

 endosperm. (Compare unaffected kernels from same ear, which are shown in fig. 

 10, and also male parent, fig. 8, and female parent, fig. 3. ) 



Figs. 12 and 13. — Kernels from an ear of a pure race of white sw'eet corn, some 

 of which show xenia from crossing with pollen of a yellow dent race. Those of fig. 

 12 are normal, evidently having been self-fertilized, while those shown in fig. 13 

 show xenia. 



