3/78 PLEIOTAXY. 
The same condition occurs frequently in some 
species of Datwra and Campanula. 

Fie. 191.—Campanula rotundifolia. ‘“ Double flowers” resulting from 
dialysis and multiplication of the petals. 
In Antirrhinwn imajus double flowers of this character 
sometimes occur; the outermost corolla is normal, the 
succeeding ones usually have their petals separate one 
from the other; the stamens are sometimes present, 
sometimes absent, and at other times petalodic. Similar 
occurrences may be met with in labiates and jasmines, 
and in Hrica hyemalis. 
Mr. W. B. Hemsley has kindly furnished me with 
flowers of a similar kind occurring in wild specimens of 
