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| Primulina longanica F.Wen & W.C.Chou, in Ma, Shen, Chou, Chen et Wen, 2025. |
Abstract
Primulina longanica F.Wen & W.C.Chou, a new species of Gesneriaceae endemic to Guangxi, China, is described and illustrated. The new species is morphologically similar to P. yangshuoensis F.Wen & Y.G.Wei, but differs in several key characteristics, including the presence of stolons, indumentum of petiole, peduncle, filament, ovary, and style, bract shape, and corolla length. The species is currently known only from its type locality, in Long’an County, Guangxi, where it grows on limestone cliffs in a subtropical monsoon climate area. Due to its limited distribution and over-collection for ornamental purposes, P. longanica is provisionally assessed as Critically Endangered (CR) according to the IUCN Red List Categories and Criteria.
Keyword: Flora of Guangxi, New taxon, Primulina yangshuoensis, Taxonomy
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| Primulina longanica F.Wen & W.C.Chou sp. nov. A. Habit. B. The abaxial surface of leaf. C. The adaxial surface of leaf. D. The abaxial surfaces of bracts. E. The frontal view of corolla. F. Opened corolla for showing stamens and staminodes. G. Stamens (Anthers and filaments). H. The abaxial surfaces of calyx lobes. I. Pistil and disc (Drawing by Di Hu). |
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| Photographs of Primulina longanica F.Wen & W.C.Chou sp. nov. A. Natural habitat. B. Habit (population, and plants grow on the limestone cliff). C. The close view of plants. D. The flowering plant with stolons (Photographed by Fang Wen and Wen-Qin Ma). E. The abaxial and adaxial surfaces of leaves. F. Cyme with single flower. G. Bracts and pedicel. H. The frontal view of corolla. I. The top view of corolla. J. The upward view of corolla. K. The peduncle, pedicle, calyx and pistil without corolla. L. The abaxial surfaces of calyx lobes. M. Pistil without corolla. N. Opened corolla. O. Stamens. (Photographed by De-Chang Meng and Fang Wen). |
Wen-Qing Ma, Li-Li Shen, Wei-Chuen Chou, Tao-Ran Chen and Fang Wen. 2025. Primulina longanica sp. nov. (Gesneriaceae) from a limestone area of Guangxi, China. Taiwania. 70(4); 639-645. DOI: 10.6165/tai.2025.70.639 [08 September 2025]
