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(77) 紫丹
Tournefortia montana Lour.
紫草科 (Boraginaceae)
英文名 (English name): Mountain Tournefortia
 Status in China: Vulnerable (VU)
Description: Climbing shrubs, 1-2 m tall; branchlets pubescent. Leaves lanceolate to ovate-lanceolate, 8-14 cm long, 1.5-4 cm wide, apex acuminate to caudate, base cuneate to rounded, sparsely strigose on both surfaces; petiole 5-10 mm long. Cymes falcate, terminal on leafy branches, strigose, 2-15 cm long. Flowers unilateral, sessile; calyx about 2 mm long, strigose, lobes lanceolate to triangular-lanceolate; corolla unknown. Drupe subglobose, ca. 5 mm in diam.
Distribution: Restricted to Castle Peak. Also in Yunnan, Hainan, Guangdong. Vietnam.
Habitat and ecology: In thickets. Flowering: spring to summer.
It is a rare species with fragmented distribution and small population size. In Hong Kong it is restricted to Castle Peak. Ex-situ conservation measures could be explored.
References:
Zhu, G. L., Riedl, H.& Kamelin, R., 1995: Boraginaceae. In Wu, C. Y. & P. Raven (ed.): Flora of China 16: 341-342. Science Press, Beijing & Missouri Botanical Garden, St. Louis.
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