DESCRIPTION OF THE PLATES. 
Plate 9. — Desmostachts Planchonianes. 
Fig. 1, a flower, Tint. size. Fig. 2, the same, magnified. Fig. 3, the calyx. Fig. 4, 
petals in difFerent positions, 5, stamens, 6, pistil : aZZ ma^n^ecZ. 7, stamen, 
seen in front. Fig. 8, the same, seen behind. Fig. 9, transverse section of anther. Fig. 10, 
the same after dehiscence. Fig. 11, stigma with portion of style. Fig. 12, the ovary seated 
in its disk, a filament showing its place of insertion, together with half the calyx. Fig. 13, 
a longitudinal section of the same, showing the ovules suspended : all more magnified. 
Plate 10. — Poeaquetba Sueinamensis. 
Fig. 1, a flower, nat. size. Fig. 2, the same, with two bracts at base, magnified. Fig. 3, 
the calyx with the bracts removed. Fig. 4, diagram showing the imbricated mode of 
Eestivation of calyx. Fig. 5, longitudinal section of a flower in bud. Fig. 6, two petals, 
seen in front. Pig. 7, the same, viewed sideways. Fig. 8, two petals conjoined, showing 
the impressions made in them by their pressure on the stamens : all magnified. Fig. 9, 
transverse section of a flower in bud, across the anthers. Fig. 10, another transverse section, 
across the ovary. Fig. 11, a petal, viewed sideways. Fig. 12, the same, seen in front. 
Fig. 13, the same, with a stamen occupying the cavity on one side. Fig. 14, a stamen, 
viewed sideways. Fig. 15, a front view of the same. Fig. 16, a posterior view of the same. 
Fig. 17, transverse section of an anther, showing its four distinct cells. Fig. 18, the same 
after dehiscence. Fig. 19, the pistil. Fig. 20, longitudinal section of the same. Fig. 21, 
the ovules removed, in different positions : all much magnified. 
Plate 11. — A. Pennantia Endlicheei. 
Fig. 1 , a finit. Fig. 2, the putamen removed : both nat. size. Fig. 3, the same, more 
magnified, with an external cord on one side, running from the apex to the base. Fig. 4, 
longitudinal section of the same, with the seed removed, showing the external cord con- 
sisting of nourishing vessels and of the two abortive cells. Fig. 5, the seed seen from 
below, with half the putamen cut away, to show the basal chalaza and internal dorsal 
raphe. Fig. 6, lateral view of the seed, exhibiting the raphe with the apical strophiole, by 
which it is attached to the external cord, and its course to the basal chalaza. Fig. 7, longi- 
tudinal section of the albumen, showing the position and relative size of the embryo : all 
magnified. Fig. 8, the embryo removed, more magnified. 
B. Details of Pennantia coetmeosa. Fig. 9, a flower in bud, nat. size. Fig. 10, the 
same, magnified. Fig. 11, the same expanded. Fig. 12, a stamen in aestivation. Fig. 13, 
the same expanded : all magnified. Fig. 14, an anther, showing the separation of its lobes 
by a thin connective. Fig. 15, a transverse section of the same. Fig. 1 6 , the same after 
dehiscence. Fig. 17, grains of pollen. Fig. 18, the ovary seated upon its disk. Fig. 19, 
the same, with the disk removed: all more highly magnified. Fig. 20, a fruit. Fig. 21, 
the putamen, with the sarcocarp removed : both nat. size. Fig. 22, a fruit, magnified. 
Fig. 23, the torus and persistent disk that supports the fruit. Fig. 24, the putamen, 
showing the channel filled with the cord consisting of the nourishing vessels and abortive 
cells. Fig. 25, the abortive cells and nourishing vessels removed. Fig. 26, a front view 
of fig. 24. Fig. 27, transverse section of the same. Fig. 28, longitudinal section of the 
putamen, showing the nourishing vessels in connexion with the dorsal raphe of the seed. 
Fig. 29, longitudinal section of the putamen with the seed removed, showing the foramen 
through which the nourishing vessels pass. Fig. 30, the seed removed, with the dorsal 
raphe and apical strophiole. Fig. 31, the same, seen from the dorsal side, with the raphe 
