32 DEVELOPMENT OF THE FLOWER. 
8. Another, vertically seen. 
8c. The placenta of the same, vertically seen. 
The sequence is— 
Results. 
That it is impossible to refer the placenta to the margins 
of the carpel leaf, although they evidently are double organs, 
and are double when the ventral suture is completed. Yet 
at the first the placenta is nothing but the disc terminating 
the axis, although flattened. 
That no part appears traceable to the margins, not even 
that close to the ventral suture. 
The pedicels very early appear articulated, the amiet 
being of early development. 
RoxBuRGHIA rere: XIII. 
A. 1.1.1. 1a. Pollen grains, soon after their exit from pa- 
rent cell, z M., 1 a. is an instance simulat- 
ing quaternary division, probably due to 
mucilaginous or oleaginous globules. 
2. Long section of pistillum. 
3. Ovulum. 
B. 1. Length of flower bud. 
2. Pistillum. : 
3. Ditto, dorsal face. z * 
4. Long section. — 
5. Ovulum. 
6. Transverse of stamen. 
7. Pollen grains, nearly mature, but outer coat not so 
discernible as subsequently. 
