Spiradiclisyanii (Rubiaceae), a new species from Guangxi, China.

Spiradiclisyanii Y.Nong & L.Wu (Rubiaceae), a new species from Guangxi, China, is described and illustrated. This new species is most similar to S.tomentosa , but it can be easily distinguished by being densely multicellular villous, leaves narrow elliptic or oblanceolate, apex acute or shortly acuminate, stipules 2-4, linear or linear lanceolate, 4-8 mm, densely villous, corolla tube 3 mm, sparsely pubescent inside, flower homomorphism, lobes 3-5, stamens arising at the base of the tube, stigma 2-lobed, lobes ovoid, slightly swollen, 0.2 mm. The habitat of Spiradiclisyanii is extremely fragile. Therefore, this species deserves close attention and protection.
Competing Interests: The authors have declared that no competing interests exist.
(You Nong, Li-Qun Lei, Gui-Yuan Wei, Xin-Cheng Qu, Zi-Yi Zhao, Bin Feng, Chuan-Gui Xu, Lei Wu.)