128 MR. BENTHAM ON TWO NEW GENERA OF BRAZILIAN PLANTS. 



DESCRIPTION OF THE PLATES. 

 Tab. XXII. 



Brachynema ramiflorum, a leafy and a flowering specimen : natural size. 



Fig. 1. Flower. 



Fig. 2. Corolla, cut open. 



Fig. 3. Stamen. 



Fig. 4. Calyx and ovary. 



Fig. 5. The same, vertical section. 



Fig. 6. Ovary, transverse section : — all magnified. 



Fig. 7. Enlarged calyx and fruit : natural size. 



Fig. 8. Fruit. 



Fig. 9. The same, transverse section. 



Fig. 10. Seed. 



Tab. XXIII. 



Pkoxanthus heterophyllus, a flowering specimen : natural size. 



Fig. 1. Flower. 



Fig. 2. Petal. 



Fig. 3. Stamens and ovary, showing the largest staminodium or abortive stamen. 



Fig. 4. The same, seen from the other side, showing the two smaller staminodia and one of the lobes of 



the disk seen between them. 

 Fig. 5. A single stamen. 

 Fig. 6. Ovary and hypogynous disk. 

 Fig, 7- Ovary, vertical section. 

 Fig. 8. Diagram of the flower : — all magnified. 



Tab. XXIV. 



Phoxanthus heterophyllus, a fruiting specimen, and a pinnate leaf from a sterile branch : both natural size. 



Fig. 1. Fruit: natural size. 



Fig. 2. The same, vertical section: somewhat magnified, as well as the three following. 



Fig. 3. Embryo, end view, showing the large ascending radicle. 



Fig. 4. The same, side view. 



Fig. 5. The same, vertical section. 



