Holboellia chapaensis Gagnepain

Evergreen. Stems grayish brown, terete, ca. 9 mm in diam., slightly angular but not winged; young branchlets conspicuously angular; lenticels numerous, fusiform. Winter bud scales broadly triangular. Petiole 3--11 cm; leaf blade palmately 3--5-foliolate; petiolules 2--5 cm; leaflets oblong to oblanceolate-oblong, 6--16 × (2--)3.5--7 cm, leathery, abaxially grayish green, adaxially green, base broadly cuneate to sometimes rounded, margin narrowly revolute, apex acute to short acuminate; secondary veins 6 or 7 pairs; tertiary veinlets prominently reticulate. Male inflorescences 2- or 3-fascicled, 1--2 cm; female inflorescences ca. 8 cm. Male flowers: sepals pale greenish white; outer 3 sepals ovate-oblong, cucullate, 7--8 × 3--4 mm; inner 3 sepals smaller. Petals broadly elliptic, ca. 1 mm wide. Stamens 5--7 mm; filaments terete, 2--3 mm; anthers 3--4 mm; connective apical appendage small, obtuse. Pistillodes minute, awl-like. Female flowers: sepals purple, fleshy, slightly thick; outer 3 sepals broadly ovate, 10--11 × 6.5--7 mm; inner 3 sepals ca. 9 × 6 mm. Petals broadly elliptic, ca. 1 mm wide. Staminodes subulate, ca. 1.5 mm, apex short. Carpels ovoid-terete, ca. 7 mm. Fruit ellipsoid to oblong, 6--12 × 3.5--5 cm. Seeds numerous, black, suborbicular, ca. 7 mm in diam., shiny. Fl. Mar--Apr, fr. Aug--Nov.

SW Guangxi, SE Yunnan [Vietnam].

Dense forest along valleys, mixed forest margins; 1000--2200 m.

Holboellia reticulata C. Y. Wu.

Holboellia chapaensis là một loài thực vật có hoa trong họ Lardizabalaceae. Loài này được Gagnep. mô tả khoa học đầu tiên năm 1938.

沙坝八月瓜（学名：Holboellia chapaensis）为木通科八月瓜属下的一个种。