IN CALOTROPIS PROCERA. 4] 
Young bud, opposite face. 
Calyx removed, vexillar face. 
Same, larger petals or ale removed. 
Same, vexillar face, alae removed. 
Bud, calyx only removed, anti-vexillar face. 
. Ale removed, vexillum deflexed ; two stamens also 
bent down. 
Vexillar face, vexillum reflexed. 
Tube laid open, ale removed. 
10. Transverse sections of anther. 
11. Contents of its cells. 
12. Long section of ovarium. Pistillum. 
13, Ovulum. 
14. Transverse double section of ovarium, shewing the 
marginal origin of ovulum. 
vtm wu» po qe 
Pw 
CALOTROPIS PROCERA. 
In the perfect flower of Calotropis, the stigmatic tissue is. 
highly developed : in the style will be found the shape of lax 
irregular cells, generally oblong, containing greenish glo- 
ules. 
At the point where the union of the styles begins, the 
outer parts of the conducting tissue, except on the immediate 
dorsum, will be found of a pinkish tint: a transverse section 
presents four oblong pink spots, a central perforation, for 
the styles are not united throughout their applied surfaces, 
and a dorsal vessel. 
These pink spots diverge outwards, gradually increas- 
ing in extent, at length coalescing and surrounding the 
whole stigmatic disk. 
The stigmatic surface and its immediate relation with the 
fissures is well seen on a transverse section. 
Along its section shews that the pink tissue passes into 
the style at the spot of articulation. 
No change has taken place in the pollen masses, except 
that the crura of the glands are no longer elastic, and have 
acquired a more brown tint. 
: : G 
