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| Oxalis xishuiensis Y.B. Yang, M.T. An & H. Li, in Yang, Li, An, Huang, Hu, Yang et Dai, 2024. |
Abstract
Oxalis xishuiensis, a new species of Oxalidaceae from Danxia landforms of Xishui County, Guizhou, China, is described and illustrated. It is morphologically similar to O. wulingensis by the two lateral leaflets arranged at about 180° angle and oblong pink petals with lilac veins, but clearly differs from the latter by leaflets almost as long as wide, obliquely obcordate lateral leaflets, shorter peduncles, longer capsule (1.2–1.5 cm vs. 0.5–0.7 cm) and alveolate seeds.
Key words: China, Danxia landforms, Oxalidaceae, Oxalis, Xishui
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Oxalis xishuiensis Y.B. Yang, M.T. An & H. Li A, B habitat C plants D rhizome E upper surface of leaves F lower surface of leaves G flowering plant H lateral view of the flower I frontal view of the flower J dissected flower K bract L capsule M seeds. |
Oxalis xishuiensis Y.B. Yang, M.T. An & H. Li, sp. nov.
Diagnosis: The new species is most morphologically similar to Oxalis wulingensis, but differs from the latter by its leaf blade ca. as long as wide, obliquely obcordate lateral leaflets (vs. long obtriangular), shorter peduncle (ca. 3–4 cm long, shorter than leaves vs. 10–12 cm long, longer than leaves), longer capsule (1.2–1.5 cm long vs. 0.5–0.7 cm long) and alveolate seeds (vs. only with longitudinally ridge).
Yan-Bing Yang, He Li, Ming-Tai An, Lang Huang, Guo-Xiong Hu, Cheng-Hua Yang and Zheng-Xian Dai. 2024. Oxalis xishuiensis (Oxalidaceae), A New Species from Danxia landforms in Guizhou, China. PhytoKeys. 239: 267-273. DOI: 10.3897/phytokeys.239.119046
