PLATE XXIII. 
Exhibits Petunia parviflora. Fig. 1, a flower. Fig. 2, the 
corolla, seen in front. Fig. 3, ditto, seen sideways, to show 
its half-formed palate. Fig. 4, the border, seen from above. 
Fig. 5, a transverse section of the tube across the palate, 
showing the stamens. Fig. 6, the corolla, cut open; all 
magnified. Fig. 7, one of the four longer stamens with 
declinate anthers, before and after dehiscence. Fig. 8, the 
shorter fifth stamen, with erect anther. Fig. 9, the stigma, 
with a portion of the style, seen sideways and from behind. 
Fig. 10, the ovarium, with the calyx cut open to show the 
supporting glandular disc; all more highly magnified. Fig. 11, 
the capsule, with persistent calyx; natural size. Fig. 12, 
the capsule, magnified. Fig. 13,aseed. Fig. 14, a longitu- 
dinal section of ditto. ig. 15, the embryo extracted, seen 
in both directions ; all highly magnified. 
PLATE XXIV, 
A, is Petunia elegans. Fig. 1, the calyx. Fig. 2, the corolla ; 
both natural size. Fig. 3, the corolla, cut open; magnified. 
Fig. 4, the stamens, before and after dehiscence. Fig. 5, the 
stigma, with a portion of the style. Fig. 6, the ovarium 
seated on its glandular disc. Fig. 7, longitudinal section of 
ditto; all more highly magnified. Fig. 8, the capsule, with 
its persistent calyx; natural size. Fig. 9, the capsule after 
