DESCRIPTION OF THE PLATES. 



ditto cut open to show the position of the stamens. Fig, 5, the entire pistil with the 

 calyj cut open and throwoi uack : all magnified. Fig- 6, the two upper stamens, ea^^h 

 with a sterile anther-lobe. Fig. 7, the two lower stamens, each with two fertile anther- 

 lobes. Fig. 8, the stigma: all more magnified. Fig. 9, the capsule after dehiscence: 

 magnified. Fig, 10, seeds : nat. size. Figs. 11 & 12, ditto. Fig. 13, section of seed. 

 Fig. 14, embryo extracted : all magnified. 



Plate 55. 



Exhibits Streptosolen Jamesoni. 



Fig. 1, a flower with the corolla in the act of opening, showing the plicated and im- 

 bricated disposition of its lobes in sestivation. Fig. 2, the same with the border fully 



Fig. 3, corolla 



iwn 



cut open to show the relative size and position of the stamens. Fig. 4, the pistil, with 

 the manner in which the anthers embrace the stigma : both magnified. Fig. 5, the 

 upper pair of stamens, each with a sterile anther-lobe. Fig. 6, the lower pair of stamens, 

 each with two fertile anther-lobes showing their mode of dehiscence. Figs. 7 & 8, 



thrown back to show tl 

 ; ovary : both fnagni/ied 



ignified. Fig. 9, the ovary with 

 3 disk. Fig. 10, a transverse section 



Plate 56, 



Is a drawing of Briinsfelsia nitida^ showing the great difference in the form of the 

 corolla and the dissimilar structure of the fruit in this genus as compared with 

 that of Franciscea (shown in Plate 59), with which genus it has been asisociated. 



Fig. 1, is the corolla cut open to show the position of the stamens. Fig. 2, the calyx. 

 Fig. 3, the pistil : all nat. size. Figs. 4 & 5, the two pairs of stamens. Figs. 6 & 7, 

 the stigma. Fig. 8, the ovary with its hypog}^nous disk. Fig. 9, transverse section 

 of ditto : all magnified. Fig. 10, fruit of Srunsfiehia undulatay a fleshy drupe. Fig. 11, 

 the same, with half of the fleshy sarcocarp removed to show the indehiscent putamen. 

 Fig. 12, one of its many seeds : all nat. size. Fig. 13, a seed. Fig. 14, the same, with 

 half of the testa removed. Fig. 15, the albumen deprived of its integuments. Fig. 16, 

 longitudinal section of ditto. Figs. 17 & 18, the embryo removed, seen in two positions. 



Plate 57. 



Represents Margaranthtis tenuis. 



Fig. 1, the calyx. Fig. 2, the coroUa. Fig. 3, the same cut open to show the 

 stamens. Fig. 4, the pistil: all nat. size. Fig. 6, a stamen seen before and behind. 

 Fig. 7, the same, showing the mode of its dehiscence: loth magnified. Fig. 8, the 

 baccate fruit enclosed within the persistent calyx. Fig. 9, the same, with the calyx 

 removed. Fig. 10, seeds : all nat. size. Fig. 11, longitudinal section of a seed. Fig. 12, 

 the embryo extracted: both magnified. 



Plate 58. 



Is LeucopJiyllum campanulcttum. 

 Fig, 1, is a flower. Fig. 2, the calyx and pistil. Fig. 3, the corolla. Fig. 4, the 



