54. Machilus shiwandashanica Hung T. Chang, Acta Sci. Nat. Univ. Sunyatseni. 1960(1): 19. 1960.
十万大山润楠 shi wan da shan run nan
Persea shiwandashanica (Hung T. Chang) Kostermans.
Shrubs, ca. 1.6 m tall. Young branchlets glabrous, older branchlets gray-brown. Petiole compressed, 6-10 mm; leaf blade castaneous when dry, obovate-oblong or oblong-oblanceolate, 5-13 × 2-5.5 cm, leathery, glabrous on both surfaces or abaxially puberulent when young, midrib abaxially elevated, adaxially impressed, lateral veins 7-9(-11) pairs, together with reticulate veinlets most conspicuous, foveolate on both surfaces, base attenuate, apex acuminate. Inflorescences terminal, umbel-like, 1-1.5 cm, glabrous, with 2-7 flowers; peduncle short, 1-4 mm. Pedicel 5-10 mm. Perianth lobes equal, oblong or lanceolate, ca. 4 mm, pubescent on both surfaces. Stamens ca. 3 mm; filaments of 3rd series hairy at base, with shortly stipitate glands. Staminodes triangular, glabrous. Ovary glabrous; style slender; stigma somewhat enlarged. Fruit unknown. Fl. Oct.
● Thickets. SW Guangxi.
This is a rare and endangered species apparently known only from the type gathering.