DORMANCY IN SEEDS 



69 



Figure 21. An ear of maize homozygous for vivipary showing the viviparous embryos 

 in various stages of development. {Photograph furnished by Dr. William H. Eyster, 

 Botanical Laboratory, Bucknell University, Lemsburg, Pa.) 



Figure 22. Viviparous seedlings in the spikes of one spring and three winter varieties 

 of barley. 1, Manchuria (C. I. 2330) 6 rowed, white, spring; 2, Dentil (C. I. 1260) 

 2 rowed, white, winter; 3, Abyssinian (C. I. 1222) 6 rowed, black, winter; 4, Meliton 

 (C. I. 1456) 2 rowed, black, winter. {Photograph furnished by Drs. Merrill N. Pope and 

 Edgar Broum, U. S. Dept. Agriculture, Bellsville, Md.) 



