472 M. FBITZ MtLLER ON THE MODIFICATION OF 



passage, six or seven yards, and, with a favouring wind, often 

 much further. The seeds in their flight through the air, though 

 dry and ripe, do not fall to the ground ; they are held in their 



grooved 



turns 



which are thus cleverly carried to their destination, a free pas- 

 sage to fall to the earth, at some distance away from their parent 

 plant, where, without incommoding it, there may be sufficient 

 room for the future generations of D. adhatodoides to spring up 

 and fulfil their destiny. 



:hla; 



Nov. 12, 1867. 



Modification 



MtJiiLEB (in a Letter to Mr 



[Read Junes, 1869.] 



My 



Itajanoz, S. Catharina, Brazil. 



March 14, 1869. 



In your book on ' Variation under Domestication ' you mention 



flowers with inferior perianth. 



frigidi 



una an 



wild plant of another Begonia^ which is here a common weed. In 

 this plant all the male flowers show a strong tendency to become 

 hermaphrodite — one, two, or three of the central stamens being 



ipletely into nistils. No two of 



transformed 



ear to be exactly alike ; and almost every 

 surprising modification. Here are some 



cases : 



Fig-l. Fig. 2. Fig. 3 



c- 



