182 



ALTERATION OF POSITION. 



in the centre of the bundle." Baillon* also records a 

 case of the same nature in Sinapis arvensis. 



Here, too, may also be mentioned the presence of 

 an adventitious siliqua within the ordinary one attached 

 along the same line as the ovules, and partially divided 

 by a replum into two cavities. In this case there was 

 nothing to indicate the presence of floral envelopes 

 (figs. 94, 95). A similar occurrence has been brought 



Fia. 94. Portion of the interior Fig. 95. Adventitious pod from 



of the silicle in Cheiranthus Clieiri, fig. 94, enlarged, 

 showing adventitious pod in the 

 place of an ovide. 



under my notice in some grapes which were observed to 

 be cracking before they were perfectly ripe, and in which 

 adventitious fruits were found within the parent grape, 

 occupying the position of seeds (figs. 96, 97). 



Similar anomalous growths are noticed under the 

 heads of Substitution and Prolification. 



Formation of stamens within the cavity of the ovary. The 

 only instance of this that has come under the author's 

 observation occurred in some flowers of Bceckea diosviw- 



I ' Adansonia,' vol. iii, p. 351, tab. xii. 



