IN OROBANCHE. 21 
There is perhaps no greater proof of the composition of 
the ovarium than a plurality of vessels arranged in a direction 
of radiation from the top of the axis. Mr. Brown has well 
referred to this in his Memoir on Composite. 
Orobanche indica.—lt appears to me that an exception 
to this law is not to be found in Orobanche, although the 
placentz of this genus are certainly right and left with re- 
gard to the axis, and as certainly are opposed to the lobs of 
the stigma. 
The. appearance which has given rise to the supposition 
of the anomaly is due to the manner in which the lines of 
the stigmatic surfaces become united. In Scrophularia, 
etc., in which the stigmatic surfaces of each placenta do not 
cohere with the stigmata, they have the same direction and 
aspect, as the carpellary leaves, viz. anterior and posterior. 
But in Orobanche the right stigmatic line of the upper car- 
pellary leaf becomes incorporated with the right stigmatic 
line of the under carpellary leaf; the same intimate union 
takes place on the left side. Such union takes place in all 
true capitate stigmata, and the stigma of Orobanche would 
be capitate were it not for the divergence of the stigmatic 
surfaces from the apex of the style. 
The true nature of Orobanche is pointed out in the mature 
carpel by the situation of the vascular fascicles, which are 
anterior and posterior, and which terminate in a clavate - 
manner just within the sinuses of the stigmata. 
For the vascular fascicle in every case when solitary occu- 
^ pies the axis of the carpellary leaf, and in no case does 
a vessel supplying the placenta become continuous to the 
style. 
In the earliest stages it is pointed out by the fact, that 
the apex of the carpellary leaf is anterior and posterior, and 
that the sinus indicating the separation of the two leaves is 
in the situation subsequently occupied by the stigmata. 
Or, in the earlier stages it is pointed out by the fact of 
the highest part or apex of the carpellary leaf being anterior 
and posterior, and of the sinus between the two right and 
eft. 
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