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| Ceropegia jinshaensis D.T.Liu & Z.K.Wu
in Wu, Cai, Cai & Liu, 2019.
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Abstract
Ceropegia jinshaensis D.T.Liu & Z.K.Wu (Asclepiadoideae, Apocynaceae), a new species from northwestern Yunnan along the upper Yangtze river of China, is described and illustrated. This species is similar to C. meleagris H. Huber, C. dorjei C. E. C. Fischer and C. aridicola W. W. Smith, but can be distinguished easily by its leaf shape and floral features, especially the corolla shape and size, the interior of corolla tube and coronal characters.
Keywords: Apocynaceae, Ceropegia, new species, Yunnan, Yangtze River
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| Figure 1. Ceropegia jinshaensis sp. nov. A plant B flower with young follicles C leaf D corolla tube dissected showing corolla interior and corona position E side view of corona F front view of corona. Drawn by Rongmei Zhang from holotype. |
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| Figure 2. Morphological comparisons of Ceropegia jinshaensis and closely related species: A–F C. jinshaensis A plant B, C leaves and flowers D immature follicles E front view of flower showing pentagonal canopy F dissected corolla tube showing interior of basal corolla tube and corona G leaves and flower of C. aridicola.
Photographed by Z.K. Wu.
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Ceropegia jinshaensis D.T.Liu & Z.K.Wu, sp. nov.
Diagnosis: This species differs from the Nepalese C. meleagris by having heart-shaped leaves, a small and narrowed upper part of corolla tube, corolla lobes coherent at the top to form a pentagonal canopy and glabrous internal surface of corolla. It also differs from C. dorjei by having smaller corolla and differs from C. aridicola W. W. Smith by having a different shape of leaf apex, smaller flower, different corolla color and canopy structure.
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Etymology: Ceropegia jinshaensis is named after its type locality, which lies along the Jinsha River.
Vernacular name: Chinese mandarin: jin sha jiang diao deng hua (金沙江吊灯花).
Distribution and habitat: Ceropegia jinshaensis is currently known from two localities in NW Yunnan and grows on the open stony slope of dry-hot valley along the Jinsha River dominant by Opuntia monacantha (Willd.) Haw., Vitex negundo L. thicket and with Hibiscus aridicola J. Anthony, Hemerocallis fulva (L.) L. and Munronia pinnata (Wall.) W. Theob.
Zhi-Kun Wu, Jie Cai, Lei Cai and De-Tuan Liu. 2019. Ceropegia jinshaensis (Apocynaceae), A New Species from northwestern Yunnan, China. PhytoKeys. 130: 41-48. DOI: 10.3897/phytokeys.130.34311
