Herbs, shrubs, or trees, with opposite, simple, and entire leaves, connected with interposed stipules, or in whorls without stipules. A very large family in tropical regions, represented by the coffee plant (Arabia and Africa) and by the cinchonas (South America).
A Manual of Organic Materia Medica and Pharmacognosy, 1917, was written by Lucius E. Sayre, B.S. Ph. M.