A genus of trees, and a very few shrubs, in which the crown is monopodial. The leaf bases enclose the apical bud. The flowers are unisexual on different trees, the male commonly with a distinctive pistillode, the female with a big, conspicuous, varied stigma. The fruit is a berry seated on the usually persistent calyx. Mangosteen is G. mangostana. There are about 200 species, occurring in the Old World tropics.
Subjects: Plant Sciences and Forestry.