HÆMATOXYLUM, CAMPECHIE-WOOD, in botany, a genus of the decandria monogynia class. The calix is divided into five parts; the petals are five; the capsule is lanceolate, and contains one cell with two boat-shaped valves. There is but one species, viz. the campechianum, campechy or logwood, a native of America, near Carthage. It is usually brought home in large logs, very hard, of a red colour, and an astringent sweet taste. It has been long used by the dyers, but not till very late as a medicine: an extracted decoction of it are said to be serviceable in diarrhoeas.