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FOC | Family List | FOC Vol. 16 | Asclepiadaceae | Periploca

3. Periploca forrestii Schlechter, Notes Roy. Bot. Gard. Edinburgh. 8: 15. 1913.

黑龙骨 hei long gu

Periploca calophylla (Wight) Falconer subsp. forrestii (Schlechter) Browicz.

Shrubs scandent, to 10 m, much branched. Petiole 1-2 mm; leaf blade lanceolate, 3.5-7.5 cm × 5-10 mm, leathery, base cuneate; lateral veins numerous, subparallel. Cymes axillary, shorter than leaves, few flowered. Flowers ca. 5 mm in diam. Sepals ovate to suborbicular. Corolla yellow-green; tube short; lobes oblong, ca. 2.5 mm, erect, not thickened at center. Corona lobes puberulent, slightly shorter than corolla tube, lateral lobes subacute. Anthers dilated at base, connective puberulent. Stigma head apex subconical. Follicles cylindric, ca. 11 cm × 5 mm. Seeds oblong, flat; coma ca. 3 cm. Fl. Mar-Apr, fr. Jul-Sep.

Thickets, sparse montane woods; 0-2000 m. Guangxi, Guizhou, Qinghai, Sichuan, Xizang, Yunnan [India, Kashmir, Myanmar, Nepal]

Used in Guangxi as medicine for traumatic injury and rheumatic arthralgia.

Browicz [Arboretum Kùrnickie 11: 1-104. 1966] treated this and the two following species as subspecies of Periploca calophylla.


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