from the usual Structure of Seeds. 151 
EXPLANATION OF PLATE VII. 
A.—A branch of the panicle of LrowTicE THALICTROIDES 
Linn. (Caulophyllum thalictroides Michauz), of the natural 
size. 
B.—The same magnified, to show at 1, the early rupture of the 
ovarium, the ovula as yet but little enlarged and only in part 
protruded: at 2, the same parts in a more advanced state ; 
one seed being nearly ripe, supported by its elongated and 
thickened umbilical cord ; a second ovulum considerably 
increased in size, but abortive; and the remains of the rup- 
tured ovarium somewhat enlarged. 
C and D.—T wo longitudinal sections of the nearly ripe seed ; ex- 
hibiting the vascular cord continued from the axis of the 
funiculus umbilicalis to the apex of the seed ; the remarkable 
process of the inner integument at the umbilicus (of which 
another view is given separately at E); and the unripe em- 
bryo nearly in contact with this process, and as yet undi- 
vided. | 
XIII. Re- 
sie 
aies. 
