biostudies-literatureUnknown204Song XF<i>Spiradiclisliboensis</i> L. Wu & W. J. Liu, a new species in tribe Ophiorrhizeae of Rubiaceae from limestone mountain areas of Guizhou, south-western China, is described and illustrated. It is similar to <i>S.guangdongensis</i> and <i>S.jingxiensis</i>, but differs from the latter two by the following traits: stipule triangular, inflorescence sessile or with peduncle up to 0.5 mm long, pedicel 0.8-2.2 mm long, corolla white, salverform, corolla tube 1.6-2.2 cm long, corolla tube of long-styled morph inside with a villous ring and stigmas positioned at the throat of the corolla tube. The conservation status is assessed as "Vulnerable" (VU) according to the IUCN Red List Categories and Criteria.PhytoKeys73-81https://www.ebi.ac.uk/biostudies/studies/S-EPMC9848952biostudies-literature<i>Spiradiclisliboensis</i> (Rubiaceae), a new species from limestone mountain areas in Guizhou, China.PMC9848952Chen AXWu LSong XFYao ZMLiu WJLan HBfalse<i>Spiradiclisliboensis</i> (Rubiaceae), a new species from limestone mountain areas in Guizhou, China.<i>Spiradiclisliboensis</i> L. Wu & W. J. Liu, a new species in tribe Ophiorrhizeae of Rubiaceae from limestone mountain areas of Guizhou, south-western China, is described and illustrated. It is similar to <i>S.guangdongensis</i> and <i>S.jingxiensis</i>, but differs from the latter two by the following traits: stipule triangular, inflorescence sessile or with peduncle up to 0.5 mm long, pedicel 0.8-2.2 mm long, corolla white, salverform, corolla tube 1.6-2.2 cm long, corolla tube of long-styled morph inside with a villous ring and stigmas positioned at the throat of the corolla tube. The conservation status is assessed as "Vulnerable" (VU) according to the IUCN Red List Categories and Criteria.2022-01-01T00:00:00Z20222025-04-18T21:16:22.493Z2025-04-07T09:13:19.781ZS-EPMC98489523676061610.3897/phytokeys.204.84397