石梓 shi zi

Trees or shrubs, 3-12 m tall; bark gray. Branchlets yellow-brown pubescent when young, glabrescent. Petiole 2-5.5 cm, channeled, pubescent when young, glabrescent; leaf blade ovate-elliptic to ovate, 5-15 X 3-7(-9) cm, papery to thickly papery, abaxially bluish green mealy with gland patches scattered to almost absent, adaxially glabrous, base cuneate, margin entire, apex acuminate, veins 3-5 pairs. Inflorescences terminal thyrses; bracts leaflike, deciduous. Calyx truncate, 5-12 mm, outside densely gray downy and with several disc-shaped glands, inside glabrous and sparsely glandular. Corolla white or pinkish, 3-3.5 cm, throat ca. 2.5 cm in diam., outside densely glandular, inside sparsely glandular. Ovary apically densely pubescent, basally glabrous. Drupes obovoid, ca. 2.2 X 1.5 cm, apex truncate. Fl. Apr-May, fr. Aug.

* Mixed forests on mountain slopes; 500-1200 m. Fujian, Guangdong, Guangxi, Guizhou.