644 GRANATER. 
reconsideration untenable, because the stigmata being 
in my opinion obviously continuations of the placenti- 
ferous margins of a carpellary leaf, it cannot subsist 
without the other. Besides the two fascicles of vessels 
of composite ovaria prove, that its formation is binary, and 
hence in Polygonez and Plumbaginez, there should be an 
equivalent number. 
It may fairly be stated, that the least permanent part of 
an ovarial leaf is the inflected margins. This subject is ill un- 
derstood and can only be cleared up by extensive examina- 
tion of very young ovaria. I think I have observed in 
Naias, that the ovarium is formed after the ovulum, for in a 
very early period, the papilla of this will be found 3 enclosed 
and surrounded by two scales the coalition of which forms 
the ovarium. 
' The situation of the stamina in Punica is unusual and 
curious reflections. Something like it occurs in 
Barclaya. The usual situation of stamina is above the 
petals or at any rate nearly on the same plane, and in those 
cases in which the stamina are indefinite the inner ones are 
generally above the outer. In Punica the reverse is the 
case, the outer are indeed on the same plane as the petals, 
but the rest are below these, and the innermost are so in 
an unprecedented degree. It is curious that such au ar- 
rangement does not occur in those cases of perigynism in 
which the ovary isentirely free, and the tube of the calyx 
is lined with a glandular lining of which the stamina are 
evidently the continuation. : 
The obliteration of various parts of vegetable tissues 18 
well worthy of study, it is the exposition of such that will 
settle the question whether in inferior flowers, the ovary 
is united to the calyx or to an excavated torus, (Rosa ete.)- 
The inferiority of a fruit is as capable of being explained 
by one supposition as by the other, but if obliteration be 
a rare phenom in vegetabl , we shall be authorised 1n 
ing the latter, since the existence of the different lay- 
