Macaranga gum : A gum of a crimson color, obtained from a tree (Macaranga Indica) that grows in the East Indies. It is used in taking impressions of coins, medallions, etc., and sometimes as a medicine.

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Taxonomy
Macaranga, species, genus, free encyclopedia, Macaranginae, Macaranga tanarius, Acalyphoideae, Acalypheae, Africa, Australasia, Asia, different species, Carl Ludwig Blume, subtribe, food plants, Berthold Carl Seemann, Biological classification, Macaranga Gum.

Defination from the web:
Macaranga is a large genus of Old World tropical trees of the family Euphorbiaceae and the only genus in the subtribe Macaranginae. ... Macaranga Gum, a crimson resin is obtained from Macaranga indica. [edit] Synonymy. Adenoceras Rchb.f. & Zoll. ex Baill. Mappa A.Juss. Mecostylis Kurz ex Teijsm. ...