Gamboge

Clusiaceæ, or Guttiferæ, a natural order of trees or shrubs belonging to the Dicotyledons (division Thalamifloræ), natives of the humid tropics of S. America. [...] Most of the plants have acrid properties, and yield a yellow resin. Among the chief and common plants of the order are Gambooge (q.v.), Mangosteen fruit (Garcinia Mangostana), [...]

Source: wiktionary

Gamboge is one of the firſt yellows, which may be made to produce five or six ſorts of Green with verdegreaſe, according as the gambooge is in the greater or leſſer proportion; if it abounds, it will make a tolerable oak green, and being mixt with a greater quantity of verdegreaſe, it will make a fine graſs Green.

Source: wiktionary

Concerning the Tree which yields the Gamboge, By Profeſſor J[ames] A. Murray. [...] The tree which yields the true gamboge is, by the natives on the coaſt of Coromandel, called Gokathu, and Bokathu; by Dr. König, it is name Guttæfera vera, and Arbor polygama fructu ceraſiformi eduli. [...] This tree grows in Siam and Ceylon: in the months of June and July, the natives break off ſome of the leaves and young ſhoots, and a yellow juice drops from the wound, of the conſiſtence of cream, which is collected in cocoa-nut ſhells, and afterwards dried by the ſun.

Source: wiktionary

Chestnut wood, dyed with saffron, or old chestnut, dyed with gambooge, imitates dark mahogany.

Source: wiktionary