98 DEVELOPMENT OF THE FLOWER. 
Nasturtium, has several fascicles to the carpellary leaf. 
[What relation is there between the venation of the leaf and 
of the carpellary leaf ?] 
atystemon. In this the carpella scarcely meet in the 
axis, nor do their margins seem to cohere with each other. 
These margins are obviously continuous with the stigmatic 
surfaces. The ovarial vessels are, a dorsal one subsequently 
ramified laterally, and marginal ones (one on each side,) 
these anastomose at the base of the style with the dorsal 
vein. The ovula foramina look downwards. This instance is 
curious, as shewing a sort of speciality in the independence 
of the placental or marginal vessels from the dorsal. It 
may be remarked of Platystemon that it is more Papavera- 
cious than Ranunculacious, it has the habit; and precisely 
the calyx, together with the sudden transition to corolla 
of Papaver. Venation sub-monocotyledonous and lax tissue, 
with ternary envelopes. 
Punica. Of the original simple composition of the pistil- 
lum in this, and the correspondence of the cells with the 
divisions of the stigma, I can speak with tolerable confi- 
dence. The obscuring phenomena are of later date, and 
never affect the composition of the style. 
They consist first of the production of cells, about four 
within the others and round the axis. 
If the outer cells be 8, there are 4 inner cells, placed 
alternate, with four of the outer; a line drawn through the 
septa of these will cut the inner ones into £wo. 
Of the nature of these 1 am quite ignorant, they can 
scarcely be additional carpellary leaves, or they would affect 
the composition of the style, and there is no known instance 
of an addition to the originally formed number of carpellary 
leaves. 
The basal cells communicate with the stigmatic canal. 
The later development of the interior cells appears to me 
singularly opposed to Dr. Lindley's remarks, that the carpels 
are in two rows, one above the other, in consequence of the 
contraction of the tube of the calyx, from which they arise. 
[Vide Int. p. 44] 
