from the usual Structure of Seeds.
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EXPLANATION OF PLATE VII.
A.—A branch of the panicle of Leontice thalictroides Linn. (Caulophyllum thalictroides Michaux), 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 ruptured ovarium somewhat enlarged.
C and D.—Two longitudinal sections of the nearly ripe seed; exhibiting 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 embryo nearly in contact with this process, and as yet undivided.
XIII. Re-
