Euonymus potingensis Chun & F. C. How ex J. S. Ma

This is the only species in Hainan Island with prickles on the capsule. The entire leaf margin is also unique to the section.

Evergreen shrubs or small trees, scandent; branches and twigs brown or dark brown, obscurely angled when young. Petiole ca. 4 mm; leaf blade thinly leathery or thickly papery, oblong-elliptic to elliptic, 6-10 × 3-4.5 cm, base and apex attenuate, margin entire; lateral veins 5-7 pairs, disappearing before reaching margin. Peduncle 3-4 cm, several flowered. Flowers 4-merous (not seen). Capsule (immature) globose, sparsely prickly. Fl. unknown, fr. May.

Hainan.

● Valley forests; ca. 1100 m.