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| Primula xilingensis K.Huang & Z.X.Fu, in Luo, Zhang, Liu, Chen, Li, Ma, Huang et Fu, 2023. (Photos by Zhixi Fu, Ke Huang, and Mingke Zhang). |
Abstract
A new species, Primula xilingensis K.Huang & Z.X.Fu, sp. nov. (Primulaceae), is described and illustrated. In gross morphology, it is clearly allied to section Minutissimae on account of having stolons, being glabrous, leaf rosette less than or equal to corolla, flower solitary and bract not swollen at base. The new species is easily distinguished by the combination of scape densely yellow farinose, leaf apex acute, rarely broadly obtuse, corolla pale purplish blue and style 3.0–6.0 mm above base of corolla tube, stamens reaching the corolla tube mouth in thrum flower. In addition, the distribution map, morphological comparison of related species and conservation status of the new species are also provided.
Key words: conservation, morphological characters, Primula sect. Minutissimae, taxonomy
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| Primula xilingensis sp. nov. A plant and roots B stolon C leaves D calyx E stamens F scape and bract G thrum flower H pin flower. (Photos A, B by Xudong Ma, and C–H by Mingke Zhang). |
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| Primula xilingensis sp. nov. A, B habitat C plants of thrum flower D habit E plants of pin flower F stolons. (Photos A, B by Zhixi Fu, C, D by Ke Huang, and E, F by Mingke Zhang). |
Primula xilingensis K.Huang & Z.X.Fu, sp. nov
Diagnosis: The new species is easily recognised by the following combination of characters: the scape densely yellow farinose, leaf apex acute, rarely broadly obtuse, corolla pale purplish blue and the style 3.0–6.0 mm above base of corolla tube, and stamens reaching the corolla tube mouth in thrum flower (Figs 1–3).
Etymology: The epithet “xilingensis” is derived from Xiling Snow Mountain, the snow mountain located in Dayi City, Sichuan Province, China.
Junjia Luo, Mingke Zhang, Xiaofeng Liu, Hui Chen, Tingyu Li, Xudong Ma, Ke Huang and Zhixi Fu. 2023. Primula xilingensis (Primulaceae), A New Species from Sichuan, China. PhytoKeys. 234: 135-143. DOI: 10.3897/phytokeys.234.108411
