Note: Do not rely on this information. It is very old.
Tacamahac
Tacamahac, an oleo-resin, fragrant in smell, employed in ointments for ulcers, and secreted by various trees. East Indian tacamahac, the product of Calophyllum Inophyllum and C. Calaba, is yellowish and acidulous, and has a lavender-like smell. Brazilian tacamahac is the product of Icica Tacamahaca and Elaphrium tomentosum, and is light-brown, opaque, and bitter. In Canada and the Northern United States the name is applied to the balsam exuded from the buds of the balsam-poplar (Populus balsamifera), formerly imported into Europe as "baume focot."