MORPHOLOGY OF REPRODUCTIVE ORGANS 195 



In the ovary of Astragalus (fig. 422), also, a spurious dis- 

 sepiment is formed by a folding inwards of the dorsal suture ; 

 while in those of Oxytropis and Phaca {fig. 423), a spurious 



Fig. 421. 



KiG. 422. 



Fiy. J23. 



Fitj. 421. Transverse section of the ovary of tlie J''lax {Linum iisilaliBimuiii), 

 sliowing five complete and true rtissepiment-, n. and five incomplete 



spurious dissepiments, Ji. Fitj. 422. Transverse sectiou of the mature 



ovary of Astraijahi.% showing spurious dissepiment proceeding from the 



dorsal suture. Fir/. 423. Transverse section of the mature ovary of 



Phaca. 



incomplete dissepiment is produced by a folding inwards of 

 the ventral suture. Various other examples of the formation 

 of spurious dissepiments might also be quoted. 



Fig. 424. 



Fig. 42."'.. 



Fig. 42(!. 



Fi't. 424. Transverse section of tlie one.celled ovary of Mignonette (Hcseda). 

 c. Tlie lower flattened portion or ovary of one of thethree carpels of which 

 it is formed, pi. One of the three parietal placenta?, Fi(/. 425. Trans- 

 verse section of the one-celled ovary of an Orchis, c. The lower portion 

 or ovary of one of the three cai-pels of which it is formed, slightly infolded. 



pi. One of the three parietal placentas. Fii/. 426. Transverse section 



of the ovary of a species of Poppy, ov. Ovules, plac. Placentas, 

 which in the young ovary nearly meet in the centre, and thus the ovary 

 becomes almost many-celled, but as the ovary progresses in development 

 it IS only one-celled; 



It should be noticed that in our description of spurious dis- 

 sepiments we have not confined our attention to those of 

 compound ovaries alone, but have also referred to those of 

 simple ovaries, in which they may equally arise. The 



