PISTILLUM. . 99 
Escholtzia appears to shew that a bicarpellary structure 
may, as has been suggested by Lindley, really arise from a 
quadri-carpellary, two being abortive ; the two smaller pla- 
cente which are stigmatic, are very variable in size, having 
however distinet vascular axes, the number of vascular bun- 
dles of the others being 5 or 7; one dorsal, two marginal or 
placental, two intermediate. 
n such cases as these, appeal to the state of the early 
flower will settle the question; the nearer we revert to the 
origin, the more equal will be the styles. 
It is singular that though there is an unusual tendency 
to costation in the veins of the fertile lamina, in the abor- 
tive one, nothing of the sort is detectible, although a trans- 
verse section still shews a line of demarcation between the 
two. 
No instance can be more instructive of the nature of the 
petals and stamens, as opposed to the sepals and carpella. 
These form a leafy, the others a glandular structure. See 
Pl. 38.—Fig. 4, C. e, Petal; d, stamens; f, dilated end and 
lip of torus. 
The ovula are fixed along the line of union of the two 
carpels ; the inner surface of the barren produces hairs, and 
also ovula. Pl. 38—Fig. 4, B. The distinction between 
the carpels subsequently becomes less. The ovules certainly 
appear attached to the barren carpels, although towards its ` 
margin the remainder produces hairs. Pl. 38—Fig. 4, a. 
Barren ? carpel. | 
In Escholtzia the stigmatic surface is plainly traceable to 
the upper part of the placentze. 
At a very eary stage the base of the perianth and stami- 
na are on a level with the base of the ovary. 
In Linum trigynum; the styles are, as the name implies, 3 
in number, each terminated by a capitate stigma with a sinus 
pointing outwards, each style has 3 vessels which terminate 
the sinus. 
The ovarium hàs 3 vessels which are continued into the 
style, and 6 cells, 3 of which are derived from the dorsum 
of the lamina. At an early stage these spurious septa are 
