Abstract
Southwestern China is the centre of diversity of Petrocosmea (Gesneriaceae). Here, a new species, named Petrocosmea dejiangensis, from north-eastern Guizhou, China, is described. The new species is most similar to P. martini, but it is distinguished from the latter by two dark blue-purple stripes inside the corolla tube along its entire length, the anthers shorter than the filaments, and the stigma apex rounded. Three populations comprising approximately 120 mature individuals were found at and near the type locality. This new taxon was assessed as “Data Deficient” (DD), according to IUCN standards.
References
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Wang, W.T. (1985) The second revision of the genus Petrocosmea (Gesneriaceae). Yunnan Zhi Wu Yan Jiu 7: 49–68.
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Wei, Y.G. & Wen, F. (2009) Petrocosmea xingyiensis (Gesneriaceae), a new species from Guizhou, China. Novon 19: 261–262. https://doi.org/10.3417/2007090
Wen, F. (2019) Petrocosmea weiyigangii (Gesneriaceae), a new species from a limestone cave in southern China. Gardens’ Bulletin (Singapore) 71: 175–183. https://doi.org/10.26492/gbs71(1).2019-11
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Xu, W.B., Pan, B. & Liu, Y. (2011) Petrocosmea huanjiangensis, a new species of Gesneriaceae from limestone areas in Guangxi, China. Novon 21: 385–387. https://doi.org/10.3417/2009101
Zhang, Q., Pan, B., Meng, T., Li, G.F., Xu, W.B. & Li, Z.M. (2013) Petrocosmea funingensis (Gesneriaceae): a new species from southeastern Yunnan, China. Phytotaxa 77: 5–8. https://doi.org/10.11646/phytotaxa.77.1.2
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GRC (2021) The RBGE Gesneriaceae Resource Centre. Royal Botanic Garden, Edinburg, UK. Available from: https://padme.rbge.org.uk/grc/ (accessed 5 September 2021).
Han, M.Q., Lü, T.F. & Liu, Y. (2017) Petrocosmea viridis, a new species of Petrocosmea (Gesneriaceae) from Guizhou, China and supplementary and revised description of P. minor. Nordic Journal of Botany 36: e01566. https://doi.org/10.1111/njb.01566
Han, M.Q., Yuan, Q., Lü, T.F., Jiang, H. & Liu, Y. (2018) Petrocosmea chrysotricha sp. nov. (Petrocosmea, Gesneriaceae), a species previously mistaken for P. begoniifolia on marlstone cliffs in Yunnan, China. Nordic Journal of Botany 2018: e01664. https://doi.org/10.1111/njb.01664
Han, M.Q., Yuan, Q., Lü, T.F., Zhang, L.B. & Liu, Y. (2019) Petrocosmea qiruniae (Gesneriaceae), a new species from Guizhou, China with supplementary data and revised description of P. leiandra. Kew Bulletin 74: 1–5. https://doi.org/10.1007/s12225-019-9811-8
Hemsley, W.B. (1891) Lindera communis Hemsl. The Journal of the Linnean Society, Botany 26: 387.
Hooker, W.J. (1899) Hooker’s Icones Plantarum Vol. 26. Longman, London, Plates 2599, 2600.
Huang, Z.J. & Xin, Z.B. (2021) Petrocosmea adenophora (Gesneriaceae), a new species from Yunnan, China. Nordic Journal of Botany 2021: e02944. https://doi.org/10.1111/njb.02944
IPNI (2021) International Plant Names Index. The Royal Botanic Gardens, Kew, Harvard University Herbaria & Libraries and Australian National Botanic Gardens. Available from: https://www.ipni.org/ (accessed 5 September 2021).
IUCN (2019) Guidelines for using the IUCN Red List categories and criteria, Version 14. Prepared by the Standards and Petitions Committee. Available from: https://www.iucnredlist.org/documents/RedListGuidelines.pdf (accessed 15 September 2021).
Jiang, H., Han, M.Q., Dong, Z., Han, Z.D. & Liu, Y. (2020) Two new species of Petrocosmea (Gesneriaceae) from Yunnan, China. Nordic Journal of Botany 12: e02847. https://doi.org/10.1111/njb.02847
Léveillé, H. (1903) Vaniotia martini Levi. Bulletin de l’Académie Internationale de Géographie Botanique 3: 166.
Léveillé, H. (1911) Petrocosmea martini Levi. Repertorium Specierum Novarum Regni Vegetabilis 9: 329.
Li, X.W. (1983) Notulae de gesneraceis yunnanensibus. Bulletin of Botanical Research 3: 18–27.
Li, C.Q., Lü, T.F., Han, M.Q., Dong, Y., Li, P.W., Liu, Y. & Wang, Y.Z. (2020) Reversal versus specialization in floral morphological evolution in Petrocosmea (Gesneriaceae). Journal of Systematics and Evolution 58: 145–158. https://doi.org/10.1111/jse.12541
Linnaeus, C. (1753) Species Plantarum Vol. 2. Salvius, Stockholm, pp 561–1200.
Oliver, D. (1887) Petrocosmea sinensis Oliv. In: Hooker, W.J. (ed.) Hooker’s icones plantarum Vol. 18. Longman, London, Plate 1716.
POWO (2021) Plants of the World Online. Facilitated by the Royal Botanic Gardens, Kew, UK. Available from: http://powo.science.kew.org/ (accessed 20 September 2021)
Qiu, Z.J. & Liu, Z.Y. (2015) Plants of Petrocosmea in China. Science Publishing House, Beijing, 116 pp.
Qiu, Z.J., Wang, X.L., Liu, Z.Y., Yang, J.F. & Zhang, S.Z. (2012) Cytological and phylogenetic study of Petrocosmea hexiensis (Gesneriaceae), a new species from Chongqing, China. Phytotaxa 74: 30–38. https://doi.org/10.11646/phytotaxa.74.1.2
Qiu, Z.J., Zhang, J., Baskaran, X.R., Hu, J., Li, Z.Y. & Liu, Z.Y. (2020) Petrocosmea nanchuanensis (Gesneriaceae), a new species from Chongqing, China. PhytoKeys 157: 137–144. https://doi.org/10.3897/phytokeys.157.33625
Shaw, J. (2011) A new species of Petrocosmea. Plantsman 10: 177–179.
Siebold, P.F. (B.) V. & Zuccarini, J.G. (1843) Platicaryn struhihicea Sieb, et Zuccur. Abhandlungen der Mathematisch-Physikalischen Klasse der Königlich Bayerischen Akademie der Wissenschaften 3: 741–742.
Tang, S.H., Yang, J.W., Li, C.R. & Zhou, Q. (2021) Petrocosmea duyunensis (Gesneriaceae), a new species from Guizhou, China. PhytoKeys 181: 1–8. https://doi.org/10.3897/phytokeys.181.68635
Wang, H.C., Zhang, L.B. & He, Z.R. (2013) Petrocosmea melanophthalma, a new species in section Deianthera (Gesneriaceae) from Yunnan, China. Novon 22: 486–490. https://doi.org/10.3417/2011035
Wang, W.T. (1984) Notulae de gesneriaceae sinensibus (V). Bulletin of Botanical Research 4: 9–35.
Wang, W.T. (1985) The second revision of the genus Petrocosmea (Gesneriaceae). Yunnan Zhi Wu Yan Jiu 7: 49–68.
Wang, W.T., Pan, K.Y., Li, Z.Y., Weitzman, A.L. & Skog, L.E. (1998) Petrocosmea. In: Wu, Z.Y. & Raven, P.H. (eds.) Flora of China Vol. 18 (Gesneriaceae). Science Press, Beijing, and Missouri Botanical Garden Press, St. Louis, pp. 302–308.
Weber, A., Clark, J.L. & Möller, M. (2013) A new formal classification of Gesneriaceae. Selbyana 31: 68–94.
Wei, Y.G. & Wen, F. (2009) Petrocosmea xingyiensis (Gesneriaceae), a new species from Guizhou, China. Novon 19: 261–262. https://doi.org/10.3417/2007090
Wen, F. (2019) Petrocosmea weiyigangii (Gesneriaceae), a new species from a limestone cave in southern China. Gardens’ Bulletin (Singapore) 71: 175–183. https://doi.org/10.26492/gbs71(1).2019-11
Wen, F., Wei, Y.G., Fu, L.F., Xin, Z.B. & Ge, Y.Z. (2021) The checklist of Gesneriaceae in China. The Gesneriad Conservation Center of China. Available from: http://gccc.gxib.cn/cn/about-68.aspx (accessed 5 September 2021)
Xu, W.B., Pan, B. & Liu, Y. (2011) Petrocosmea huanjiangensis, a new species of Gesneriaceae from limestone areas in Guangxi, China. Novon 21: 385–387. https://doi.org/10.3417/2009101
Zhang, Q., Pan, B., Meng, T., Li, G.F., Xu, W.B. & Li, Z.M. (2013) Petrocosmea funingensis (Gesneriaceae): a new species from southeastern Yunnan, China. Phytotaxa 77: 5–8. https://doi.org/10.11646/phytotaxa.77.1.2
Zhao, H.T. & Shui, Y.M. (2010) Petrocosmea shilinensis, a new species of Gesneriaceae from Yunnan, China. Yunnan Zhi Wu Yan Jiu 32: 328–330. https://doi.org/10.3724/SP.J.1143.2010.10011