IN CALOTROPIS PROCERA. - 5l 
lar, rounded or more convex on the under than the upper 
surface; above are the traces of a cup opening below a 
, closed cavity, the articulation is just developing, and opens 
.on pressure; sepals with veining ramifications above the 
base. Petals, etc. cellular, unequally emarginate. Subulate 
bodies exist.]* 
In Sarcostemma viminale, the angles of the anthers on di- 
verging towards the filaments leave a rounded space, which 
is shining and secreting. 
Oil makes the pollinia very transparent, the terminal crest 
appears cellular, and is white with a yellow margin; the base 
of the pollinia may likewise have been seen covered with a 
white hyaline membrane, but its inflections inwards are not 
to be traced: this white basilar margin is continuous. The 
body is yellowish, and has a cellular appearance. 
I believe the masses to be really cellular, the inflections 
white, each cell containing an intine. 
In Poinciana, the pistillum in its young state is evidently 
a convolute leaf. 
The mature stigma is a sub-oblique compressed chan- 
nel, terminating in a stigmatic canal, and fringed with small 
papille. 
The number of ovarial vessels is 3, all continued into the 
style, which is blood-red; stigma very inconspicuous. 
The changes that take place by which the simple fleshy 
cellular homogenous body of Calotropis becomes a bilocular 
stamen, in some respects of remarkable complexity, may be 
thus enumerated : 
This first change is the emargination of the apex, the se- 
cond the tracing out, chiefly by a yellowish fuscous tint of the 
two cells; these are at this stage continuous with the gene- 
ral cellular substance of the anther. The next consists in the 
separation of the substance so marked out from the part of 
the anther surrounding; and at the same time that the cell is 
formed, which perhaps takes place at its apex first, the 
central part of the mass presents extremely mucilaginous 
* Within brackets the MS. is partly written in pencil. 
* * 
