Vasilis Teodoridis:
Rosaceae | Pygeum
2. Pygeum topengii Merrill; Philipp. J. Sci. 15: 237. 1919.
??? tun guo mu
Pygeum tokangpengii Merrill.
Trees to 25 m tall. Bark dark gray to grayish brown. Branchlets dark brown; brown pubescent when young; glabrescent; with orbicular small lenticels. Winter buds ovoid; 2.5–5 mm; brown pubescent; apex acute. Petiole 5–8 mm; brown pubescent; leaf blade ovate-elliptic to elliptic; 6–12 x 3–5.5 cm; leathery; abaxially brown appressed pubescent and more densely so along midvein and secondary veins but glabrescent or only very sparsely pubescent and with 2 black nectaries near base; adaxially lustrous and glabrous; base broadly cuneate and asymmetric; margin entire; apex shortly acuminate and with an apical obtuse tip; secondary veins 5–8 on either side of midvein; abaxially raised. Racemes solitary or to several in a fascicle; 4–7 cm; many-flowered; rachises; pedicels; bracts; hypanthia; and sepals densely brown pubescent; bracts small; ovate-lanceolate to lanceolate; soon caducous. Flowers 2–3 mm in diam. Pedicel 1–3 mm. Hypanthium obconic; 2–2.5 mm. Sepals 5 or 6; triangular-ovate; 1–2 mm; apex acute. Petals as many as sepals; oblong; slightly longer than sepals or undistinguishable from sepals; outside brown pubescent; apex ± obtuse. Ovary glabrous. Drupe dark brown; reniform; 0.8–1 x 1–1.6 cm; glabrous; apically depressed. Fl. Jun–Sep; fr. winter.
Forests; forest margins; abandoned fields; mountain valleys; along trails; stream sides; 100--1600 m. Fujian; Guangdong; Guangxi; Guizhou; Hainan; Hunan; Yunnan.