472 | APPENDIX. No. V. 
seems to be set aside merely by the appellations of T'chilli and Lada Tchiili, 
as given to it in the Malay Islands; Chilli, either simply, or im composition, 
being the Mexican name for all the species and varieties of this genus.* 
All the species of Nicotiana appear to be American, except N. Australa- 
sic (the N. undulata of Ventenat and Prod. Flor. Noy. Holl. but not of Flora 
Peruviana,) which is certainly a native of New Holland. The exception 
here, however, does not materially invalidate the reasoning, N. Australasie 
differing so much from the other species as to form a separate section of the 
genus. 
The same argument might perhaps be applied to other plants of doubtful 
origin, as to Canna indica, which it would derive from America. 
It is certainly not meant, however, to employ this reasoning in every case, 
and in opposition to all other evidence ; and mstances may be found, even 
among the alimentary plants, where it is very far from being satisfactory. 
Thus the Cocoa Nut, though it will probably be considered as indigenous to 
the shores and islands of equinoctial Asia, is yet the only species of its genus 
that does not belong exclusively to America. 
Cytisus Cajan, may be supposed to have been introduced from India. 
‘This plant, which is very generally cultivated in the vicmity of the Congo, I 
conclude is the Voando, mentioned by Captain Tuckey as bemg ripe in 
October; and as Mr. Lockhart understood from the natives, that Cytisus 
Cajan continues to bear for three years, 1t is probably Merolla’s Ovvando, of 
which he gives a similar account.+ 
Whether Arachis hypogwa be mdigenous_or introduced, cannot now perhaps 
be satisfactorily determined. ‘Chis remarkable plant, whose singular structure 
and economy were first correctly described by M. Poiteau,} and which was 
every where seen in abundance, as far as the river was examined, appears to 
form an important article of cultivation along the whole of the west coast of 
Africa, and probably also on the east coast, on several parts of which it was 
found by Loureiro.§ 
According to the same author, it is also universally cultivated in China and 
Cochinchina. 
* Hernandez, Rer. Medic, Nov. Hispan. Thesaur. p. 134, et Nieremb. Hist. Nat. p.363. 
+ Piccardo Relaz. p. 120. + Meém. de U Instit. Sc. Phys. Sav. Etrang. 1, p. 455. 
§ Flor. Cochin, 430. 
