428 MR. J. MIERS ON THE HIPPOCRATEACEZ OF SOUTH AMERICA. 
PLATE XXIII. 
A branch of Tontelea attenuata in flower, and portion of another in fruit. 
Fig. 1. A flower in bud, and after expansion, nat. size. 
Fig. 2. The five sepals, showing the spiral vessels seen when they are detached. 
Fig. 3. The five petals, with similar spiral vessels. 
Fig. 4. The disk, stamens, and ovary : all magnified. 
Fig. 5. The sepals, disk, stamens, ovary, style, and stigma. 
Fig. 6. A longitudinal section of the same. 
Fig. 7. A view of fig. 5 seen from above. 
Fig. 8. The stamen before and after the expansion of the anthers: all more magnified. 
Fig. 9. A fruit on its pedicel, with its bract— nat. size, but perhaps not sufficiently matured. 
Fig. 10. A transverse section of the same, showing its thick coriaceous pericarp and its three cells. 
PLATE XXIV. 
A branch of Raddia arborea in flower and in fruit. 
Fig. 1. A flower, seen sideway. 
Fig. 2. The same, seen from above: both nat. size. 
Fig. 3. One of the five sepals. 
Fig. 4. One of the five petals, seen in front and back : both magnified. 
Fig. 5. A flower, showing the sepals, two of the petals, and the mode of their insertion beneath the free 
broadly expanded basal margin of a pulvinated hollow disk, and the position of the stamens 
within the disk. 
Fig. 6. The same, with half of the disk cut away, to show the position of the ovary within it. 
Fig. 7. A longitudinal section of the ovary. 
Fig. 8. A transverse section of the same: all equally magnified. 
Fig. 9. The three stamens before and after the dehiscence of the anthers, more magnified. 
Fig. 10. A longitudinal section of the thick pericarp, half of which is removed to show the position 
of the seeds. 
Fig. 11. One of the seeds. 
Fig. 12. A transverse section of the same. 
Fig. 13. The embryo extracted, with its two large fleshy cotyledons, and the small radicle placed near the 
hilum: all nat. size. 
PLATE XXV. 
A portion of a branch of Thermophila rugulosa in flower, and another in fruit. 
Fig. 1. A flower expanded, nat. size. 
Fig. 2. One of the five sepals, with the spiral fibres seen when they are detached. 
Fig. 3. One of the five petals, with similar spiral fibres. 
Fig. 4. The calyx, disk, and style: all somewhat magnified. 
Fig. 5. A flower expanded—showing the mode of insertion of the petals beneath the expanded basal 
margin of a conical disk, and the place of insertion of the stamens. 
Fig. 6. A longitudinal section of the ovary seated within the tall fleshy disk. 
