316 ON THE GENERA RADAM/EA AND NESOGENES. 
repeat my belief that there is no real endemic element in the vascular 
vegetation of atolls. I am not sure whether the giant tortoises of the 
Seychelles and Galapagos offer a parallel in distribution. 
I may add that the celebrated author and botanist, Adalbert de Chamisso, 
was apparently the first to collect the original species of /Vesogenes, for I have 
no doubt that the plant he mentions in the Narrative of Kotzebue's Voyage, 
1815 to 1818, as Buchnera? was the plant in question. Тһе specimen 
in the Kew Herbarium recorded above confirms this supposition. 
EXPLANATION OF PLATE 14. 
Nesogenes Dupontit, Hemsl. 
lig. 1. Bracteole. 
2. Flower. 
3. Part of calyx laid open and pistil. 
4. Corolla, opened showing attachment of stamens. 
Б. 
6.1 Anthers 
›. 
7. . 
8 | Sections of the ovary. 
9, Fruit, two sepals removed. 
10. Seed. 
All details enlarged. 
