DENISON UNIVERSITY. 



II 



Fig. 4. 



Figure 6 is the empirical formula for the flower. The 

 perianth is composed of two circles of three members each. 

 Stamens six, in two circles. Pistil composed of 

 three carpels with dorsal sutures at the angles. 

 Placentation central in three cells. Dehiscence 

 loculicidal. There is perfect symetry 

 and perfect alternation of parts on 

 the plan of 3. 



Figure 7 is a view of the cross 

 section of the ovary, twice size. 

 There are six fibro-vascular bundles. ^^- S- 



The three at the angles represent the midribs of the 

 carpel leaves. The three opposite the faces are the 

 united bundles of the two united half blades. At 

 dehiscence the bundles at the angles are divided, the 

 separation taking place through the middle of each bundle 

 into the loculi. The partitions are formed by the infolded 

 edges of the carpel leaves. Each leaf is completely rolled in 

 and each margin bears a row of carpels. 

 From the stigma and from the strongly 

 developed fibro-vascular bundle in the 

 middle of each face it would appear that 

 the latter was the midrib and the dehis- 

 cence down the ventral suture in which 

 case the ovules would probably be con- 

 sidered as lateral axial and so morpholog- 

 ically leaves. That this is not the 

 case is very clearly shown by the ex- 

 amination of the empirical diagram. 

 Fig. 8 made from a flower in which 

 the pistil is ruptured along the lines 

 of its regular dehiscence, but long 

 before its maturity and there is de- 

 ^^^' ^" velopcd a circle of perfect stamens 



on what must evidently be considered a prolongation of the 



Fig. 6. 



