Spiradicliskarstana (Rubiaceae), a new species from Yunnan, China.

Spiradicliskarstana , a new species of Spiradiclis (Rubiaceae) collected from Yunnan, China, is described for the first time. It is morphologically close to S.jingxiensis , but differs from the latter mainly by its inflorescences with 5-9 flowers, its 1.5-2.4 mm long peduncles, its stipules shorter than 1 mm and the 5-12 pairs of secondary veins. The conservation status is assessed as "Vulnerable" (VU) according to the IUCN Red List Categories and Criteria.