4. Disporum longistylum (H. Léveillé & Vaniot) H. Hara, J. Jap. Bot. 59: 40. 1984.
长蕊万寿竹 chang rui wan shou zhu
Tovaria longistyla H. Léveillé & Vaniot, Mem. Pontif. Accad. Romana Nuovi Lincei 23: 361. 1905; Disporum cavaleriei H. Léveillé.
Rhizome without creeping stolon. Stem usually branched distally, 30--90 cm. Petiole 3--10 mm; leaf blade lanceolate to elliptic, 3--15 × 1--4(--6) cm, base subrounded, apex usually long acuminate. Inflorescences terminal, umbellate, 2--8-flowered; pedicels 0.7--2.4 cm. Tepals green or greenish yellow, rarely purplish, spatulate-oblanceolate to obovate, 1--1.7 cm × 2--4(--8) mm, base gibbous-spurred, apex subacute; spurs 1--1.5 mm. Stamens 1.2--1.9 cm, exserted; filaments filiform, 1--1.6 cm, very minutely scabrous-puberulent proximally; anthers 2.5--4.5 mm. Ovary 2--3 mm. Style 0.8--1.7 cm, exserted. Berries black, subglobose, 6--9 mm in diam. Fl. Mar--Jun, fr. Sep--Dec. 2 n = 16*.
* Forests, rocky places; 400--1800 m. Gansu, Guizhou, Hubei, Shaanxi, Sichuan, Xizang, Yunnan.