302 



THE STRUCTURE OF FLOWERS. 



(Fig. 83, c). A curious foliaceous modification is described 

 by Miiller and figured by Masters,* in which the metamor- 



Fig. 83.— a, Foliaceous stamen, and b, petal of the Alpine Strawberry (after Le Maout 

 and Decaisne) ; c, stamen of " Green Rose." 



phosed stamen had the appearance of two leaves united by 



their mid-ribs. It occurred in Jatropha Pohliana (Fig. 84). 

 This will be alluded to again, as pecu- 

 liarly significant. 



Phyllodt of the Carpels and 

 Ovules. — This is of much more frequent 

 occurrence than of the stamens. The 

 first condition of change is to leave the 

 ovary open and to expose the ovules ; 

 the style may still be stigmatiferous. 

 The ovules then undergo phylloidal 

 changes of different degrees, and much 

 discussion has arisen as to whether the 



coats of ovules should be regarded as homologous with leaves, 



the nucellus being axial, or not, etc.f 



Since, however, anatomical observations clearly prove 



that both the primine and secundine issue out of tangential 



Fig. 84. — Foliaceous stamen of 

 Jatropha Fohliana (after 

 Masters). 



Te^-atology, p. 255. 



L.c, p. 262. 



