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.