Research Paper

Impatiens sterilis, a rare new species of Impatiens with reduced sterile inflorescences from Yunnan, China

Yong-Xiu Song, Yi-Yan Cong, Ren-Ping Kuang, Yang-Cheng Peng, Yi-Ming Zheng

Published on: 15 January 2021

Page: 48 - 52

DOI: 10.6165/tai.2021.66.48

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    Abstract

    Impatiens sterilis (Balsaminaceae), discovered in Yunnan, China, is described and illustrated here. It belongs to I. section Racemosae and is related to I. scutisepala. I. sterilis differs from the latter species in the shape of the leaf blades and the lower sepal, the number of lateral sepals, and producing some reduced sterile inflorescences at the end of anthesis. Detailed notes on morphology, key diagnostic characters, distribution, pollen and seed morphology, conservation status and color photographs are provided for the identification of the new species.

    Keyword: Balsaminaceae, China, Impatiens scutisepala, morphology, pollen, taxonomy

    Literature Cited

    Bhaskar, V. 2012. Taxonomic Monograph on Impatiens L. (Balsaminaceae) of Western Ghats, south India: The Key Genus for Endemism. pp.283 Centre for Plant Taxonomic Study, Bangalore, India.

    Chen, Y.-L. 2001. Balsaminaceae. In: Flora Reipublicae Popularis Sinica, vol 47(2). Science Press, Beijing, pp. 1–243.

    Chen, Y.-L., S. Akiyama and H. Ohba. 2007. Balsaminaceae. In: Wu Z.-Y., P.H. Raven and D.Y. Hong (eds.) Flora of China. vol. 12. Science Press, Beijing & Missouri Botanical Garden Press, St. Louis, pp. 43–113.

    Cong Y.-Y., K.-M. Liu, X.-Z. Cai, S.-Z Tian. 2008. Impatiens fugongensis (Balsaminaceae), a new species from Yunnan, China. Bot. Stud. 49(2): 161–165.

    Fischer, E. 2004. Balsaminaceae. In: Kubitzki K. (ed.) The Families and Genera of Vascular Plants. vol 6. Springer, Berlin, pp. 20–25.

    IUCN Standards and Petitions Committee 2019. Guidelines for Using the IUCN Red List Categories and Criteria. Version 14. Prepared by the Standards and Petitions Committee. (http://www.iucnredlist.org/documents/RedListGuidelines.pdf. accessed on 19.04.2020)

    Liu, C.-J., Q. Lin and J.-X. He. 2004. Methods and terminology of study on seed morphology from China. Acta Bot. Boreali-Occident. Sin. 24: 178–188.

    Lu, Y.-Q. 1991. Pollen morphology of Impatiens L. (Balsaminaceae) and its taxonomic implications. Acta Phytotaxon. Sin. 29: 352–357.

    Lu, Y.-Q. and Y.-L. Chen. 1991. Seed morphology of Impatiens L. (Balsaminaceae) and its taxonomic significance. Acta Phytotaxon. Sin. 29: 252–257.

    Lu Z-C, B. Pan, F.-Z. Huang, Y. Liu 2020. Impatiens gongchengensis (Balsaminaceae), a new species from Guangxi, Southern China. Taiwania. 65(1): 1?4.
    DOI: 10.6165/tai.2020.65.1View Article Google Scholar

    Mabberley, D.J. 2008. The Plant book – A Portable Dictionary of Plants. Cambridge University Press, Cambridge, UK, 1040 pp.

    Song, Y., Y.-M. Yuan, and P. Kupfer. 2005. Seedcoat micromorphology of Impatiens (Balsaminaceae) from China. Bot. J. Linn. Soc. 149(2): 195–208.
    DOI: 10.1111/j.1095-8339.2005.00436.xView Article Google Scholar

    Wang, K.-F. and X.-Z. Wang. 1983. Outline of palynology. Beijing university Press, Beijing, 205 pp.

    Yu, S.-X. 2012. Balsaminaceae of China. Peking University Press, Beijing, 206 pp.

    Yu, S.-X., S.B. Janssens, X.-Y. Zhu, M. Liden, T.-G. Gao and W. Wang. 2016. Phylogeny of Impatiens (Balsaminaceae):integrating molecular and morphological evidence into a new classification. Cladistics 32(2): 179–197.
    DOI: 10.1111/cla.12119View Article Google Scholar

    Yuan Y.-M., Y. Song, K. Geuten, E. Rahelivololona, S. Wohlhauser, E. Fischer, E. Smets, P. K?pfer. 2004. Phylogeny and biogeography of Balsaminaceae inferred from ITS sequences. Taxon 53(2): 391–403.
    DOI: 10.2307/4135617View Article Google Scholar

    Zeng, L., Y.-N. Liu, R. Gogoi, L.-J. Zhang and S.-X. Yu. 2015. Impatiens tianlinensis (Balsaminaceae), a new species from Guangxi, China. Phytotaxa 227(3): 253–260.
    DOI: 10.11646/phytotaxa.227.3.4View Article Google Scholar