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swellings where the edges of the carpels meet. In Fevillea 
the case is practically the same. After the differentiation of 
the five outer lobes, there arise on the border of the disc-like 
area, which they surround, five other lobes alternate with 
the first and subsequently five other elevations may be no- 
ticed opposite the calyx-lobes. These represent the stami- 
nodia and for a time they resemble the young corolla-lobes. 
Soon after these lobes become distinctly visible, the deepen- 
ing of the central area takes place and the carpels appear as 
slight elevations on the sides of the concavity (jig. 6). The 
number of carpels constituting the gynoecium of Fevillea is 
three; the number of the calyx and corolla-lobes is five: 
hence a carpel may sometimes be opposite a lobe of the co- 
rolla sometimes on a radius between two. Figure 6 shows 
the origin of one of the carpels as seen in a longitudinal sec- 
tion of a flower in the stage of development just referred to. 
The carpel in this case appears to originate in a slight eleva- 
tion of cells between the corolla-lobe and the bottom of the 
depression. As growth proceeds the cavity becomes deeper, 
the carpels and the corolla-lobes stand free as eight papilla- 
like bodies on its border. In the open pistillate flower of 
Fevitiea the summit of the ovary is about 5 mm. in diameter 
and forms the floor of the flower from which the short styles 
emerge separately and bend outward. The placentae are 
first noticeable as small vertically running ridges between 
the incipient carpels, that is the point at which we may con- 
ceive the edges of the carpels as uniting. These ridges 
grow in toward the center of the cavity and meet first in the 
upper part of the ovary (jg. 7) and thus close the cavity. 
The placental ridges meet later in the lower part but between 
them there are maintained three spaces in which the ovules 
are freely suspended until some time after fertilization, when 
the growth of the seeds and the expansion of the tissue of 
the pericarp invests them with the pulpy tissue. When the 
ovules first appear on the placenta they stand out at right 
angles to the axis but later they become pendent and flexed 
back along the sides of the dissepiments. Ordinarily two or 
