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| Viola shiweii Xiao C. Li & Z. W. Wang, in Li, Wang, Wang, Ge, ... et Zhong, 2022. |
Abstract
Viola shiweii Xiao C. Li & Z. W. Wang (Violaceae), a new species from Guizhou, China, is described, based on morphological and molecular evidence. The new species is morphologically most similar to V. kwangtungensis Melchior in its glabrous lateral petals and stoloniferous habit, but can be distinguished by its obtuse teeth along the leaf margin, its abaxially greyish-green leaf blade and its broader and entire sepals with a distinct basal appendage.
Keywords: Morphology, phylogeny, sect. Plagiostigma, subg. Viola
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| Viola shiweii sp. nov. A flower side view B flower front view C habit D stipule E capsule F stamens and pistil. |
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| Viola shiweii sp. nov. A petals, sepals, stamens and pistils B, G flower in front view and detail of a longitudinal section in side C, H basal leaf adaxially and abaxially D cleistogamous flowers E capsule and seeds F margin teeth I stipule J leaves on stolons. |
Viola shiweii Xiao C. Li & Z. W. Wang, sp. nov.
Diagnosis: The new species is morphologically most similar to V. kwangtungensis Melchior in its glabrous lateral petals and stoloniferous habit, but can be distinguished by its obtuse teeth along the leaf margin, its abaxially pale green leaf blade and its broader and entire sepals with a distinct basal appendage.
Distribution and habitat: The species was observed to grow on dry and partially shaded limestone, around the karst forest edge, at 700–900 m elevation.
Etymology: The specific name epithet “shiweii” was proposed in memory of Deng Shi-wei (191?-1936), who dedicated his life to the exploration of the flora of Guizhou. The Chinese name is given as “世纬堇菜”.
Xiao-Chen Li, Zheng-Wei Wang, Qi Wang, Bin-Jie Ge, Bin Chen, Ping Yu and Xin Zhong. 2022. Viola shiweii, A New Species of Viola (Violaceae) from Karst Forest in Guizhou, China. PhytoKeys. 196: 63-89. DOI: 10.3897/phytokeys.196.83176
