DESCRIPTION OF THE PLATES. 
showing a central hollow space. Fig. 17, longitudinal section of the last, showing the 
same hoUow space filled with, a layer of cellular tissue, the minute embryo being seen in 
the summit. Fig. 18, the embryo extracted : all equally magnified. Fig. 19, the embryo, 
more magnified. 
Plate 14. — A. Stemonurus Cetlanicus. 
Fig. 1, a flower in bud, nat. size. Fig. 2, the same, magnified. Fig. 3, the same, 
opening. Fig. 4, two of the petals, valvate in ajstivation, with their apices introflexed. 
Fig. 5, a stamen, seen in front. Fig. 6, the same, seen behind. Fig. 7, the same, with 
the anther removed : all magnified. Fig. 8, transverse section of an anther. Fig. 9, hairs 
upon the filaments : all highly magnified. Fig. 10, the calyx. Fig. 11, the same, enclosing 
the sterile pistil. Fig. 12, longitudinal section of the same : all magnified. 
B. Stemonurus Walkeri. 
Fig. 1, a male flower in bud, nat. size. Fig. 2, the same, magnified. Fig. 3, two of 
the petals, with their summits introflexed. Fig. 4, a stamen, seen in three positions. Fig. 5, 
a filament, seen behind : all magnified. Fig. 6, transverse section of an anther. Fig. 7, 
a grain of pollen : both more magnified. Fig. 8, the sterile ovary, magnified. Fig. 9, a 
fertile hermaphrodite flower, in bud, nat. size. Fig. 10, the same, magnified. Fig. 11, 
two of the petals. Fig. 12, a stamen : all magnified. Fig. 13, stamen, seen in three 
positions, more magnified. Fig. 14, the fertile pistil, magnified. Fig. 15, the same, 
seated on its disk witlmi the calyx, which is half cut away. Fig. 16, longitudinal section 
of the same, showing its two collateral ovules suspended from near the summit of the cell ; 
both more magnified. 
Plate 15. — Stemonurus aefinis. 
Fig. 1, a flower, nat. size. Fig. 2, the same, magnified. Fig. 3, a petal. Fig. 4, a 
stamen : both magnified. Fig. 5, the same. Fig. 6, a filament : both more magnified. 
Fig. 7, the pistil, magnified. Fig. 8, the same. Fig. 9, longitudinal section of the same, 
showing two suspended ovules : both more magnified. 
Plate 16. — Platea laxxfloea. 
Fig. 1, a flower, nat. size. Fig. 2, calyx, pedicel, and bract. Fig. 3, petal. Fig. 4, 
two of the stamens. Fig. 5, the pistil : all magnified. Fig. 6, the calyx, pedicel, and 
bract. Fig. 7, stamens. Fig. 8, the pistil. Fig. 9, longitudinal section of the same : dll 
more magnified. 
Plate 17. — Platea Lobbiana. 
Fig. 1, a flower, nat. size. Fig. 2, a flower bursting. Fig. 3, the same expanded. Fig. 4, 
the calyx. Fig. 5, a petal. Fig. 6, one of the stamens, placed between two of the petals. 
Fig. 7, a stamen, seen before and behind. Fig. 8, the pistil : all magnified. Fig. 9, the 
same. Fig. 10, longitudinal section of the same, showing the two collateral ovules sus- 
pended from near the summit of the cell : both more magnijied. 
Plate 18. — Sarcostigma Kleinti. 
Fig. 1, a flower, nat. size. Fig. 2, the same. Fig. 3, two of the petals. Fig. 4, a 
stamen. Fig. 5, pistil and stamens upon the hypogynous disk : all magnified. Fig. 6, 
the calyx. Fig. 7, petals, seen before and behind. Fig. 8, ovary, disk, and stamens : all 
