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Impatiens cavaleriei (Balsaminaceae), a new species from the Miaoling Mountains in Guizhou Province, China

摘要


Impatiens cavaleriei X.X.Bai & R.X.Huang, sp. nov. from the Miaoling Mountains of Guizhou, belonging to I. sect. Uniflorae, is described and illustrated here. While I. cavaleriei morphologically resembles I. notolopha Maximowicz and I. undulata Y.L.Chen & Y.Q.Lu in ovate or ovate-elliptic leaves, yellow flowers and a cymbiform lower sepal, this new species can be easily distinguished by its comprehensive characteristics, including a slightly transparent capsule, lateral united petals clawed, 2-flowered, and seed surface with warty protrusions. A detailed description, color photographs and a provisional IUCN Red List assessment are provided along with discussions of the geographical distribution and morphological relationships of I. cavaleriei with similar species.

參考文獻


Peng, S., Cong, Y.-Y., Tian, J., Zhang, C.-F. 2021 Impatiens bullatisepala (Balsaminaceae), a new species from Guizhou, China. Phytotaxa 500(3): 217–224.
Ren, L.-Y., Chen, Y., Yuan, T.-H., Huang, R.-X., Li, M.-J., Bai, X.-X. 2022 Impatiens bijieensis (Balsaminaceae), a new species from karst plateau in Guizhou, China. PhytoKeys 192: 1–10.
Song, Y., Yuan, Y.-M., Küpfer, P. 2003 Chromosomal evolution in Balsaminaceae, with cytological observations on 45 species from Southeast Asia. Caryologia 56(4): 463–481.
Yu, S.-X., Janssens, S.B., Zhu, X.-Y., Lidén, M., Gao, T.-G., Wang, W. 2016 Phylogeny of Impatiens (Balsaminaceae): Molecular and morphological evidence into a new classification. Cladistics 32(2): 179–197.
Yuan, T.-H., Chen, Y., Yu. S., Ren. L.-Y., Huang, R.-X., Li, M.-J., Bai, X.-X. 2022b Impatiens liupanshuiensis (Balsaminaceae), a new species from Guizhou, China. PhytoKeys 192: 37–44.

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