赛木患 sai mu huan

Basionym: Sapindus oligophyllus Merrill & Chun, Sunyatsenia 2: 271. 1935; Aphania oligophylla (Merrill & Chun) H. S. Lo; Howethoa oligophylla (Merrill & Chun) Rauschert; Sapindopsis oligophylla (Merrill & Chun) F. C. How & C. N. Ho.

Shrubs or small trees, evergreen, 4-10 m tall. Branches grayish yellow, grooved, subglabrous. Leaves with slightly flat petioles 8-18 cm; leaflets 1 or 2 pairs, sometimes terminal pair only one developed; petiolules 5-8 mm; blades adaxially shiny, oblong-elliptic or narrowly elliptic, 6-14 × 2-4.5 cm, thinly leathery or papery, both surfaces glabrous, lateral veins 12-15 pairs, tips reticulate, base cuneate, margin entire, apex shortly acuminate. Inflorescences terminal or axillary near tips, usually shorter than or ca. as long as leaves, main rachis slightly stout and strong, upper part ferruginous pubescent, branches usually short and slender. Pedicels ca. 2 mm, slender. Sepals suborbicular, larger ones ca. 2 mm in diam., ciliate. Petals greenish white, broadly ovate, nearly as long as sepals, abaxial surface and margin pilose. Disk inconspicuously lobed. Stamens 8; filaments ca. 3 mm. Ovary obovoid, 2-lobed, 2-loculed, sometimes 3-lobed and 3-loculed. Fertile schizocarps subglobose or broadly ovoid, 1.2-1.4 × 1-1.2 cm. Fl. spring, fr. summer.

● Forests. S Hainan.