DESCRIPTION OK THE PLATES. 
B. A branch of Cortesia cuneata. 
Fig. 1, a flower. Fig. 2, the calyx. Fig. 3, the corolla: all nat. size. Fig. 4, the 
calyx cut open, to show the position of the appendages between the calyx and corolla. 
Fig. 5, the corolla. Fig. 6, the same, cut open, to show the insertion of the stamens. 
Fig. 7, two of the stamens, showing the mode of attachment of the anthers. Fig. 8, the 
stipitated pistil : all equally magnified. Fig. 9, a transverse section of the ovary, show- 
ing its peculiar organization, the position of the ovules, the pseudo-dissepiments, and the 
central columella, more magnified. Fig. 10, a fruit, half invested by the persistent calyx. 
Fig. 11, the same, with the ealyx taken away. Fig. 12, the same, with half of the peri- 
carp removed, to show the two included nueules. Fig. 13, the two nucules, seen sepa- 
rately. Figs. 14 & 15, the same, shown on their two faces : all nat. size. Fig. 16, a 
nucule, seen on its inner face. Fig. 17, a transverse section of the same below the sum- 
mit, showing the inflected plates and the openings into the cells for the communieation of 
the nourishing vessels from the columella to the funicles of the seeds. Fig. 18, the upper 
halves of the two nucules cut away, leaving one of the seeds in its eeU, shelving the 
funicular point of its attachment below the summit. Fig. 19, a seed, with its funicle and 
raphe on the ventral side. Fig. 20, the same, seen sidewise. Fig. 21, a longitudinal 
section of the same, showing the embryo enclosed in thin albumen. Fig. 22, the em- 
bryo, seen on its face. Fig. 23, the same, seen on its edge, showing the relative size of 
its two cotyledons. Fig. 24, the same, with three cotyledons, as sometimes occurs : all 
magnified on the same scale. 
Plate 84. — Ehabdia crebrifolia. 
Fig. 1, a nascent branch, concealed within the imbricated leaves, with its few terminal 
alternate flowers. Fig. 2, a flower, with two bracts on the pedieel. Fig. 3, the ealyx. 
Fig. 4, the corolla. Fig. 5, a stamen. Fig. 6, the pistil : all nat. size. Fig. 7, the calyx, 
expanded. Fig. 8, the eoroUa, expanded. Fig. 9, the same, cut open, to show the posi- 
tion of the stamens : all magnified. Fig. 10, the stamens, showing the mode of attach- 
ment of the anthers and their manner of dehiscence. Fig. 11, the stipitate pistil, with- 
out any disk. Fig. 12, a transverse section of the same, showing the four cells and 
central columella: all more magnified. Fig. 13, the fruit enclosed in the persistent calyx. 
Fig. 14, the fruit removed : both nat. size. Fig. 15, the same, magnified. Fig. 16, a 
transverse section of the same, showing four nucules enclosed within the pericarp, around 
the central columella. Fig. 17, the four nucules seen from above. Fig. 18, the same, 
separated, attached bigeminately. Fig. 19, a transverse section of the four nucules 
around the columella. Fig. 20, a transverse section of the four nucules separated, with 
the seeds removed, showing the relative position of the apertures leading into the cells. 
Fig. 21, the nucules, attached in pairs by a fungous longitudinal line, which is a portion 
of the columella. Fig. 22, the same, separated, showing the placentary fungous line by 
which they are attached to the columella. Fig. 23, the central hollow membranaceous 
columella. Fig. 24, a transverse section of the same, showing the branches of nourishing 
vessels that penetrate the cells, in conjunction with the funicles of the seeds. Fig. 25, a 
nucule, with half of the putamen removed, exhibiting the seed attached below the sum- 
mit. Fig. 26, the seed, with its funicle and raphe, seen laterally. Fig. 27, the same, 
seen on the ventral face. Fig. 28, the same, with the outer integument removed. 
Fig. 29, the embryo enclosed in albumen. Fig. 30, the embryo separated, seen on its 
face. Fig. 31, the same, seen sidewise : all equally magnified. 
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