INTRODUCED PLANTS OF AFRICA. 



341 



And the camel, which is well known in the Somali country ; and 

 which has also reached the Galla tribes. 



On the other hand, the more anciently cultivated plants of Equato- 

 rial Africa, appear to have been derived from a widely different quar- 

 ter; and to have been introduced, together with the very art of cul- 

 tivation, from the Malay countries. But at present, I will not 

 undertake to distinguish in all instances, the plants of ancient intro- 

 duction. 



The domestic fowl, a bird well known among the Negro tribes of East 

 Africa to the Monomoisy inclusive, may have been in like manner 

 introduced by the East Indians: 



Together with \he pig, an animal known at least to the Comoro Island- 

 ers. — But to proceed with the plants : 



Citrus aurantium, the orange, abundantly cultivated at Zanzibar ; 

 and the fruit, (which is more acid than usual,) forming an article 

 of export to Bombay. — I would observe, however, that I did not meet 

 with the true orange, either in Hindoostan, or in the East Indies. 



Tephrosia piscatoria, abundantly naturalized in open ground, on the 

 island of Zanzibar. 



Ahi'us precatorius, growing in wild situations on the island of Zanzi- 

 bar. — Cademosto (a. d. 1454), met with this plant at the Senegal 

 river. 



Lagenaria vulgaris, the gourd, cultivated by the Negro tribes of East 



Africa; and well known to the Monomoisy of the Interior. 

 Terminalia catappa, planted around houses on the island of Zanzibar. 

 Ageratum conyzoides, a common weed on the island of Zanzibar. 

 Eclipta, also, a weed on the island of Zanzibar. 



Convolvulus batatas, the sweet- potato ; cultivated on the island of Zan- 

 zibar, and as far in the Interior as the Monomoisy country. 



Ocymum, three or four species, cultivated at Zanzibar; including per- 

 haps, the one seen among the Pacific islands. 



Capsicum frutescens, cultivated on the island of Zanzibar. 



Carica papaya, planted around houses on the island of Zanzibar. 



Ricinus commimis, naturalized on the island of Zanzibar. 



Fiper betel, the plant seen at Zanzibar. Where the use of betel pre- 

 vails, as it does at the Comoro Islands, and at Bombay ; but the 

 custom, is not in vogue in Arabia. 



Artocarpus integrifolia, the jack-tree ; frequently planted around 

 houses, on the island of Zanzibar. 



80 



