Uncaria gambier Roxb. Rubiaceae. GAMBIR.
Malacca, Sumatra, Cochin China and other parts of eastern Asia;
largely cultivated in the Islands of Bintang, Singapore and Prince of
Wales. Gambir is prepared by boiling the leaves and evaporating the
decoction until it acquires the consistence of clay. This gambir is used
for tanning leather, also by dyers and curers, forming an article of
export. Among the Malays, the chief use is as a masticatory, in
combination with the areca-nut and the betel-leaf.
Unona (Xylopia) concolor Willd. Anonaceae.
This plant has an acrid and aromatic fruit, used as a pepper
by the negroes in Guiana.
U. (Xylopia) discolor Vahl.
The fruit is used in the same way as is that of the species
U. (Xylopia) discrete Linn. f.
The purple, aromatic, berries are of a very good taste.
U. (Xylopia) dumetorum Dun.
The pulp of the fruit is sparing but is of a grateful taste.
U. (Xylopia) undulata Dun.
The plant has an aromatic fruit, which is used as a
condiment at Wari in Guinea.