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. — Tlie 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. 



