58 MR. J. MIERS ON THE FAMILY OF TRIURIACEjE. 



Fig. 20. A single hermaphrodite flower. 



Fig. 21. The same, in bud, and inverted upon its slender pedicel, with its corresponding bract : — 

 magnified. 



Fig. 22. The same, reversed, in order to show the position of its three stamens among its numerous 

 pistilla. 



Fig. 23. An anther, expanded. 



Fig. 24. The style. 



Fig. 25. A single flower of the same plant, after the ripening of its fruit:— of the natural size. 



Fig. 26. A single fruit : — natural size. 



Fig. 27. The same, exhibiting its persistent lateral style : — magnified. 



Fig. 28. The same, with the pericarp burst open, exhibiting its single erect seed inclosed in its peculiar 

 endocarpial covering. 



Fig. 29. The pericarp, after bursting, with the seed removed . 



Fig. 30. The endocarpial covering of the seed, as seen from above, showing its eight prominent ribs. 



Fig. 31. A side view of the same, showing the cancellated structure of the endocarp and the markings of 

 its areolae. 



Fig. 32. The same, with half of the endocarpial covering removed, in order to show the mode of attach- 

 ment of the summit and base of the seed to the ribs of the endocarp. 



Fig. 33. A transverse section of the seed and endocarpial covering. 



Fig. 34. The seed removed, showing the markings of its testa. 



Fig. 35. The nucleus, as seen after the removal of the testa, inclosed in its reticulated integuments. 



Fig. 36. A transverse section of the same, showing the granular or cellular structure of the hyaline nucleus. 



Tab. VII. 



Fig. 1. A male plant of Hyalisma ianthina. 



Fig. 2. A female plant of the same : — both of the natural size. 



Fig. 3. A single male flower with its pedicel and bract : — of the natural size. 



Fig. 4. A bud of the same, seen from above, in order to show the mode of aestivation of its eight 



segments. 

 Fig. 5. The same, expanded; showing the position of its four stamens upon its fleshy androphore : — much 



magnified. 

 Fig. 6. An anther, before and after dehiscence. 

 Fig. 7- A female flower, expanded : — equally magnified. 



Fig. 8. A single pistil, with its elongated basal style : — more highly magnified. 

 Fig. 10. A plant of Soridium Spruceanum : — of the natural size. 

 Fig. 11. One of its male flowers expanded: — much magnified. 

 Fig. 12. A side view of one of its stamens : — more highly magnified. 

 Fig. 13. The same, seen edgeways. 

 Fig. 14. A section of the same, showing its two cells. 

 Fig. 15. The same, seen sideways, in order to show its mode of dehiscence. 

 Fig. 16. A transverse section of the same. 

 Fig. 17. Grains of pollen, still more highly magnified. 

 Fig. 1 8. A female flower supported on its pedicel and bract : — magnified. 

 Fig. 19. A pistil: — of the natural size. 

 Fig. 20. The same : — much magnified. 



