EXPERIMENTAL EM BR YOLOG Y 



385 



Fig. 207. Culture bottles, 6 to 10 days old. The first contains an undissectev I 

 Iris seed lying in almost unchanged condition; the rest show seedlings which have 

 arisen from excised embryos. (After Randolph, 1945.) 



Fig. 20S. Four-month-old seedlings of 7m grown from excised embryos (left); 

 seedlings from undissected seeds sown at same time (right). (After Randolph, 

 1945.) 



