1. Mastixia Blume, Bijdr. Fl. Ned. Ind. 13: 654. 1826.
单室茱萸属 dan shi zhu yu shu
Xiang Qiuyun (向秋云 Jenny Xiang); David E. Boufford
Trees evergreen. Branchlets terete or ridged. Leaves oblong-elliptic, ovate, or narrowly obovate, leathery to thickly papery. Flowers pedicellate; bracteoles 2, at base of pedicel. Calyx campanulate, thick; lobes 4 or 5(–7), persistent. Petals 4 or 5(or 6), ovate, leathery, valvate, apex inflexed. Stamens 4, 5, 6, or 8; filaments subulate, short, flattened. Style often persistent, conical, short; disk circular, slightly 4- or 5-lobed. Drupes ovoid, oblong-globose, or narrowly ovoid; stone of fruit woody, with longitudinal grooves; seed coat white, membranous. 2n = 22, 26.
About 25 species: Bhutan, Cambodia, China, India, Indonesia, Laos, Malaysia, Myanmar, Papua New Guinea, Philippines, Sri Lanka, Thailand, Vietnam; Pacific Islands (Solomon Islands); three species (two endemic) in China.