SYNANTHY. 37 
are united together, so that we have a single peduncle, 
bearing at its extr emity two flowers placed j in approxi- 
mation ver y shghtly adherent one to the other. In 
this manner I have seen three flowers of the vegetable 
marrow on a common stalk, the flowers themselves 
being only united at the extreme base. Occasionally 
cases may be met with wherein the pedicels of a stalked 
flower become adherent to the side of a sessile flower. 
I have noticed this commonly in Umbellifere. Union of 
this kind occurs frequently m the common cornel 
(Cornus), wherein one of the lower flowers becomes 
adherent to one of the upper ones. In De Candolle’s 
‘Organographie Végétale,’ Plates 14 and 15, are 
figured cases of fusion of the flower stems of the 
Hyacinth and of a Centawrea. In other cases the 
union involves not only the stalk but the flowers them- 
selves ; thus fusion of the flowers 1s a common accom- 
paniment of fasciation, as was the case in the Campa- 
nula figured in the cut (fig. 14). 

Fie. 14.—Synanthic flowers of Campanula medium. 
Synanthy may take place without much derangement 
of the structure of either flower, or the union may be 
attended with abortion or suppression of some of the 
