THE PISTIL. 



99 



centation is called axillary, or axile (Figs. 291, 292, 293, 

 2 94, 295). 



FREE-CENTRAL PLACENTATION. When the dissepi- 

 ments, or double partitions between the cells, are absent, 

 leaving the placentae and ovules at the center, and all the 



FIG. 300. 



FIG. 299. 



FIG. 298. 



FIG. 302. 



FIG. 301. 



cells opening into one chamber, the placentation is said to 

 \>z free-central (Figs. 296, 297, 298, 299). 



PARIETAL PLACENTATION is seen when the placentae 

 are attached to the walls, or projections from the walls, of 

 the ovary, as is illustrated in Figs. 300-307. 



FIG. 303. 



FIG. 304. 



FIG. 305. 



FIG. 306. 



FALSE DISSEPIMENTS. It will be well to know that, in 

 many ovaries, there are partitions not formed in the way 

 described in Ex. XLII. The following are instances of 

 what are known as false dissepiments : 



Observe in Fig. 308 a partition going inward from the 



