THE COMMENCEMENT OF THE PHANEROGAMIC FRUIT. 



79 



called "inferior ovaries" consists, for the most part, according to my own 

 estigations, of a deeply excavated receptacle and not of carpels invested by the 

 )e of the calyx or perianth. That the latter condition occurs (as in many 



Fig. 211.— Autholysia and Structure of the Ovary. 



iiODgitudinal sections of the ovaries of " monstrous " flowers of Primula japanica ; the outer carpels form the ovarian cavity 

 and are destitute of ovules ; the Inner carpels show all transitions between ovulif erous cushions, concrescent with the 

 extremity of the axis, and isolated leaf-etructnres, the marginal teeth of which correspond to ovules. ' A single "mon- 

 strous " flower of Primula japonica. 8 Longitudinal section through the ovary of Glaux maritima. 9 View into the ovary 

 of same after removal of the front wall. ? natural si^e ; the others magnified 6-8 times. 



sifrages) is not here denied, but more frequently is it the receptacle which is 

 sed as a circular wall to form a closed ovary. On the ripening of the fruit the 

 )sule in many cases opens by means of valves which strikingly resemble the 

 ves formed from true carpels. It is, however, but a resemblance comparable 



that existing between the phylloclades of Butcher's-broom and true leaves 



vol i. p. 333). 



