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| Raphiocarpus flavus Y.G.Wei, F.Wen, Z.B.Xin, & T.V.Do, in Xin, Wei, Maciejewski, Fu, Qian, Wen et Do, 2026. |
Abstract
Raphiocarpus flavus Y.G.Wei, F.Wen, Z.B.Xin, & T.V.Do, a new species from Ninh Bình Province and Hanoi City, Vietnam, is described and illustrated. This species is morphologically similar to R. asper (Drake) B.L.Burtt but can be distinguished by its stem height, absence of scabrous punctations, internode length, 3-whorled leaves, leaf size and indumentum, axillary inflorescences, corolla length, color and indumentum, and 2-lipped corolla limb. According to the IUCN Red List Categories and Criteria, this new species has been provisionally assessed as Least Concern (LC).
Keyword: Cuc Phuong National Park, Flora of Vietnam, Huong Pagoda, new taxon, Raphiocarpus asper
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| Raphiocarpus flavus Y.G.Wei, F.Wen, Z.B.Xin, & T.V.Do, sp. nov. A–C. Habitat; D. Adaxial leaf blade; E. Abaxial leaf blade; F. Cymes; G. Bracts and bracteoles; H. Lateral view of the corolla; I. Top view of the corolla; J. Sepals; K. Pistil and disc; L. Opened corolla with stamens and staminode (Photographed by Fang Wen, Plate arranged by Zi-Bing Xin). |
Raphiocarpus flavus Y.G.Wei, F.Wen, Z.B.Xin, & T.V.Do, sp. nov.
黃花漏斗苣苔
Diagnosis: Raphiocarpus flavus is morphologically similar to R. asper (Drake) B.L.Burtt, but can be easily distinguished by its stems 1–1.8 m (vs. 0.4–0.5 m), scabrous punctations absent (vs. present), internodes 10– 12 cm (vs. 5–6 cm), 3-whorled leaves (vs. opposite), leaves almost glabrous (vs. densely appressed puberulent to pubescent), inflorescences axillary (vs. terminal), corolla glabrous (vs. densely pubescent), 2-lipped limb (vs. with 5 nearly equal lobes).
Etymology: The specific epithet "flavus" is derived from its unique yellowish corolla.
Zi-Bing Xin, Yi-Gang Wei, Stephen Maciejewski, Jia-Xin Fu, Xiao-Mao Qian, Fang Wen and Truong Van Do. 2026. Raphiocarpus flavus (Gesneriaceae), A New Species from the limestone karst areas, Northern Vietnam. Taiwania. 71(3); 592-596 DOI: 10.6165/tai.2026.71.592 [2026 July 11]