7. A section of the ovarium ; magnified 20 times. This shews that the 
six valves into which the fruit finally separates exist distinctly in 
the ovarium, and have each their own vascular axis; the larger 
valves, from the face of ,which the two-lobed placenta proceeds, 
are opposite the petals, and the smaller ones without ovula are 
opposite the sepals. 
