46 DEVELOPMENT OF THE FLOWER 
dies, perfectly hypogynous, perfectly distinct. Vide, Pl. 20. 
(—A.) 3. 3a. 3b. 3c. 3d 
The stamina still have a glandular appearance, the pistil- 
lum exists as two truncate scales, concave internally with 
thickened margins, the two together forming a sort of cup. 
Vide, Pl. 20. (—A.) 5. 5a. 5b. 5c. 5d. 
The next stage presents the petals more dupe; bùt 
still only slightly united, with some inequality of apex. The 
stamina have now assumed almost precisely the appearance 
the petals had previously. The scales composing the pis- 
tillum have increased in size, and slight traces of the ova- 
rium itself are discernible. How is this formed ? 
The next change affects the slight union of the petals, the 
first step to the formation of a gamopetalous or monopetalous 
corolla. The stamina consist almost entirely of the anthers, 
and occupy with regard to the stigma pretty much the posi- 
tion they subsequently keep. They will be found to present 
traces of emargination, and of the two cells, being subse- 
quently occupied by the pollen masses, but there is no sepa- 
ration of structure. Vide, Pl. 20. (—A.) 6. 65.— Pl. 24. (—E.) 
14. 
The pistillum now exists as two minute ovaria, each provid- 
ed with a very short style terminated by a large disc, which 
disc has originated in the union of the two scales before 
described. ‘This head or stigma is even at this period im- 
perforate or nearly so, and may be observed to be articulat- 
ed with the style. 
The next stage presents a greater degree of monopetalism, 
and a colouring of the interior of the corolla. 'The anthers 
are more emarginate, the apex bent over the disc of the 
stigma. Pl. 20. (—A.) 7. 7a. Tb. Te. Td. Te. Tf. Tg. th. 
The sides are beginning to assume their curious structure. 
The traced out cells contain in the centre of their cellular 
body a grumous amorphous mass, in which à; scarcely detects 
any granular matter. Pl. 24. ( —E.) 12. 12a. 18.— PI. 22. (—C.) 
12.18. 14, .* 
The pistillum has undergone little change except in the 
size of the ovaria, there are at this present indications of 
