366 ON SOME REMARKABLE DEVIATIONS, ETC.

��Explanation of Plate 12 (VII). [isi

A. — A branch of the panicle of Leontice thalicthoides Lhi/i. (Caulo- phylluni tlialictroides Michaux), of the natural size.

B. — The same magnified, to sliow at 1, the early rupture of the ovarium, the ovula as vet 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 in- creased in size, but abortive; and the remains of the ruptured ovarium — some- what 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.

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