Calophyllum

Calophyllum is a genus of tropical flowering plants in the family Calophyllaceae. They are mainly distributed in Asia, with some species in Africa, the Americas, Australasia, and the Pacific Islands.[6]

Members of the genus Calophyllum native to Malesia and Wallacea are of particular importance to traditional shipbuilding of the larger Austronesian outrigger ships and were carried with them in the Austronesian expansion as they migrated to Oceania and Madagascar. They were comparable in importance to how oaks were in European shipbuilding and timber industries. The most notable species is the mastwood (Calophyllum inophyllum) which grows readily in the sandy and rocky beaches of the island environments that the Austronesians colonized.[7][8]

Calophyllum are trees or shrubs. They produce a colorless, white, or yellow latex. The oppositely arranged leaves have leathery blades often borne on petioles.[6] The leaves are distinctive, with narrow parallel veins alternating with resin canals.[9] The inflorescence is a cyme or a thyrse of flowers that grows from the leaf axils or at the ends of branches. In the flower the sepals and petals may look similar and are arranged in whorls. There are many stamens. The fruit is a drupe with thin layers of flesh over a large seed.[6]