129 DEVELOPMENT OF THE FLOWER 
embryo will be. found: whether this sac is developed from 
the apex or base of the excavation, I cannot say. At the 
period above alluded to, it adheres by both ends, but very 
slightly. The raphe at this time is nearly complete, con- 
sisting of three primary branches, the two lateral ones are, 
however, subsequently carried up, and it then becomes 
3-partite. Towards the. time of maturity the embryo will 
be found covered by two coats, the outer being the testa, 
. the inner thin membrano-cellular, the embryonary sac; the 
cotyledons are alternate with the raphe. But long before 
this the ovaria have commenced to assume their natural 
position, and as it were to be pulled down. The raphe 
will then be found. to be next the axis, which situation it 
preserves, although from the depression the ovaria are 
subsequently subjected to, it will be found somewhat lateral. 
This is a sure proof that in all Boraginez the ovaria are 
inverted, the raphe being in all, in the earlier periods of de- 
velopment, external. 

Pl. 31. . Crucifere.—Note showing the parts of the 
flower and development of the ovule with reference to the 
remarks of Dr. Lindley: Introd. Nat. Ord. p. 14, ed. 
1832. 
My view of the structure in this aded is, that it is Dode- 
candrous. The stamina being arranged in 3 series, of which 
the outermost is incomplete, the two lateral ones, or those 
opposite the lateral sepals being alone developed, but still 
smaller than the others which form the intermediate series, 
and which are consequently opposite the petals. The in- 
nermost is represented by 4 glands, evidently situated on 
the same plane,-or forming a single verticil, and these are 
placed opposite the sepals, their natural situation; the two 
lateral ones being placed within the corresponding stamina. 
I attach considerable importance to the fact of the 2 stamina 
opposite the lateral sepals being invariably smaller, as it 
points out a tendency towards the total disappearance of the 
outer series. lt will be seen that this view accords much - 
