7. Decaspermum hainanense (Merrill) Merrill, Lingnan Sci. J. 14: 42. 1935.
海南子楝树 hai nan zi lian shu
Eugenia hainanensis Merrill, Philipp. J. Sci. 23: 255. 1923.
Trees, to 10 m tall. Branchlets 4-angled, grayish brown tomentose. Petiole 5-10 mm; leaf blade oblong, 5-9 × 2-2.5 cm, both surfaces at first pubescent, glabrescent, abaxially yellowish green when dry, adaxially dark green and shiny when dry, secondary veins ca. 20 on each side of midvein, at an angle of ca. 65° from midvein, and obscure, intramarginal veins ca. 1 mm from margin, base cuneate, apex slightly apiculate with an obtuse tip. Inflorescences in axil of apical leaves, cymose paniculate, 4-8 cm, many-flowered; bracts obovate. Flowers 1.7-2 cm in diam.; bracteoles elliptic, ca. 3 mm, pubescent. Hypanthium 2-2.5 mm. Calyx lobes 5, broadly ovate, ca. 2 mm, pubescent. Petals 5, white, ovate, 7-8 × 4-5 mm, glandular, apex pointed. Stamens pink to red, 7-8 mm; filaments with some trichomes. Ovary 9-13-loculed. Style 7-8 mm; stigma expanded. Fruit depressed globose, 7-8 mm in diam., 9-13-loculed. Fl. Feb-Jul.
● Forests, thickets on clay, humus-rich soils; 400-2500 m. Hainan.
"Pyrenocarpa hainanensis" (Hung T. Chang & R. H. Miao, Acta Sci. Nat. Univ. Sunyatseni 1975: 63. 1975) belongs here but was not validly published because the genus name "Pyrenocarpa" was not validly published (see comment following genus description above).