DESCRIPTION OF THE PLATES. 
and calyx, and by two cup-shaped bracts. Fig. 19, the same more grown, the half of the 
disk, cal 3 rx, and bracts being cut away. Fig. 20, vertical section of the disk, calyx, and 
bracts : all nearly the nat. size. 
Plate 3. — Liriosma. 
A. Liriosma Vellozii, in flower. Fig. 1, a flower in bud. Fig. 2, the calyx. Fig. 3, 
two of the petals, half adherent by their margins. Fig. 4, a vertical section of the calyx, 
with two of the petals, one fertile and two sterile stamens, to show their position and place 
of insertion, the ovary being removed. Fig. 5, front and back view of a fertile stamen. 
Fig. 6, a sterile stamen. Fig. 7, vertical section of the calyx, showing the free ovary half 
included within it. Fig. 8, the entire pistil, removed. Fig. 9, vertical section of the one- 
celled ovary, showing the ovules suspended from a free central placenta. Fig. 10, trans- 
verse section of the same, showing the three suspended ovules. Fig. 11, vertical section 
of the same, with the ovules removed, to show the thi’ee incomplete septaj and the free 
central axile placenta : all magnified. 
B. Liriosma Gardneriana, in fruit. Fig. 12, the ripe drupe ; here the persistent gro-wing 
calyx is formed into a fleshy coating, which is become confluent with the ovary now con- 
verted into a nut. Fig. 13, the nut, with fleshy portion removed. Fig. 14, transverse 
section of the same. Fig. 15, the enclosed seed, with a longitudinal furrow, in which the 
withered placenta is imbedded by the pressure of growth ; the two abortive ovules are seen 
in the apex, still attached to the summit of the placenta. Fig. 16, the same seen from 
above. Fig. 17, the placenta, with the two abortive ovules removed from the seed. 
Fig. 18, vertical section of the nucleus, showing the small embryo, enclosed near the 
summit of the copious albumen ; the embryo is imbedded in a small ceU, from the bottom 
of which the remains of the embryo-sae is seen descending along the axis of the albumen. 
Fig. 19, the embryo removed : all nat. size. Fig. 20, the embryo, magnified. 
Plate 4. — A. Icacina grandifolia, in flower. 
Fig. 1, a flower with the corolla fallen away, nat. size. Fig. 2, the same, magnified. 
Fig. 3, vertical section of the same, showing the ovary, one-celled by abortion, supported 
by a small cupular disk, and the calyx, with two ovules suspended from a little below the 
summit of the cell. 
B. Icacina Senegalensis. Fig. 4, a flower, nat. size. Fig. 5, the same, .magnified. 
Fig. 6, the calyx. Fig. 7, petals, seen in three different positions. Fig. 8, a stamen with 
its semi-bilobed anther, seen anteriorly, posteriorly, and laterally, with a fllament deprived 
of its anther ; all magnified. Fig. 9, an anther, more magnified. Fig. 10, transverse section 
of the two-lobed anther, before and after dehiscence. Fig. 11, the pistil, with half the 
calyx cut away. Fig. 12, the ovary, showing the place of insertion of the stamens, two of 
the filaments being thrown back, to exhibit tbe five-lobed hypogynous disk. Fig. 13, vertical 
section of the ovaiy, showing two ovules suspended a little below the summit of the cell. 
Fig. 14, the stigma : all magnified. 
C. Icacina Mauritiana. Fig. lo,a.?LO^ev, nat. size. 16, the calyx. Fig, VJ, two 
petals, to show their valvate aestivation. Fig. 18, a petal, back and front view. Fig. 19, 
a stamen, seen before and behind. Fig. 20, a filament with the anther removed. Fig. 21, 
transverse section of an anther : all magnified. Fig. 22, a poUen-grain, highly magnified. 
Fig. 23, the pistil, supported by its hypogj-nous disk, showing the ovary, gibbous in conse- 
quence of the abortion of two of its cells. Fig. 24, a vertical section of the same, with two 
ovules parietally attached and suspended from below the summit of the cell : both magnified. 
