Abstract
Primula xingshanensis, a new species of Primula endemic to Hubei Province, China, is described and illustrated. It is morphologically similar to two other species belonging to Primula sect. Auganthus, P. rupestris from West Hubei and South Shaanxi Provinces, and P. sinensis from Guizhou and Sichuan Provinces, but can be easily distinguished from the two by its obovate-spatulate to spatulate and pinnately lobed leaf blade, cuneate leaf base and shorter petioles that are 1.3–4.8 cm long.
References
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Balfour, I.B. & Farrer, R.J. (1918) Some new species of <em>Primula</em> which have flowered recently. <em>Transactions of the Botanical Society of Edinburgh</em> 27: 240–243. https://doi.org/10.1080/03746601809468482</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Balfour, I.B. (1913) Chinese species of <em>Primula</em>. <em>Journal of the Royal Horticultural Society of London</em> 39: 128–167.</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Hao, G., Hu, Q.M. & Lee, M.S. (2002) Circumscriptions and Phylogenetic Relationships of <em>Primula</em> Sects. <em>Auganthus</em> and <em>Ranunculoides</em>: Evidence from <em>nrDNA ITS</em> Sequences. <em>Acta Botanica Sinica</em> 44: 72–75. https://doi.org/10.3321/j.issn:1672-9072.2002.01.012</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Hu, C.M. & Kelso, S. (1996) Primulaceae.<em> In: </em>Wu, Z.Y. & Raven, P.H. (Eds.) <em>Flora of China</em>. Vol. 15. Science Press, Beijing & Missouri Botanical Garden Press, St. Louis, pp. 39–185.</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Hu, C.M. (1990) <em>Primula</em>.<em> In: </em>Chen, F.H. & Hu, C.M. (Eds.) <em>Flora Reipublicae Popularis Sinicae</em>. Vol. 59 (2). Science Press, Beijing, pp. 1–277.</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">IUCN. (2001) IUCN red list categories and criteria, ver. 3.1. IUCN Species Survival Commission. [https://www.iucnredlist.org/]</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Li, X.W., Bao, D.C., Huang, H.D. & Xie, J.F. (2017) <em>Primula</em> <em>hubeiensis</em> (Primulaceae), a new species from Central China. <em>Novon</em> 25: 162–165. https://doi.org/10.3417/2016032</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Lindley, J. (1821) <em>Primula sinensis. In:</em> <em>Collectanea Botanica</em>. Tab. 7.</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Linnaeus, C. (1753) <em>Species Plantarum</em>. Vol.1. Impensis Laurentii Salvii, Holmiae (Stockholm), 560 pp.</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Mast, A.R., Kelso, S., Richards, A.J., Lang, D.J., Feller, D.M. & Conti, E. (2001) Phylogenetic relationships in <em>Primula</em> L. and related genera (Primulaceae) based on noncoding chloroplast DNA. <em>International Journal of Plant Sciences</em> 162 (6): 1381–1400. https://doi.org/10.1086/323444</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Mast, A.R., Kelso, S. & Conti, E. (2006) Are any primroses (<em>Primula</em>) primitively monomorphic? <em>New Phytologist</em> 171 (3): 605–616. https://doi.org/10.1111/j.1469-8137.2006.01700.x</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Richards, A.J. (2003) <em>Primula</em>. Timber Press, Portland, 386 pp.</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Sun, J., Zhang, D.G., Huang, X.H., Tojibaev, K. & Deng, T. (2020) <em>Primula</em> <em>sunhangii</em> (Primulaceae): a new species from Hubei, Central China. <em>PhytoKeys</em> 156: 103–112. https://doi.org/10.3897/phytokeys.156.49137</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Xie, J., Li, X.W. & Gan, Q.L. (2009) Some new recorded plants of Pteridophyte and Spermatophyte from Hubei. <em>Chinese Wild Plant Resource</em> 28 (3): 27–31. https://doi.org/10.3969/j.issn.1006-9690.2009.03.009</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Xu, Y., Deng, Y.F., Hao, G. & Hu, C.M. (2020) Proposal to conserve the name <em>Primula sinensis</em> Sabine ex Lindl. against <em>P. sinensis</em> Lour. (Primulaceae). <em>Taxon</em> 69 (4): 831–832. https://doi.org/10.1002/tax.12307</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Yang, L.S., Peng, J.L., Li, H.T., Wang, J. & Xie, X.L. (2020) Discovery and research of new distribution species of endangered plants <em>Primula mallophylla</em> in Hubei province. <em>Hubei Agricultural Sciences</em> 59 (16): 100–101. https://doi.org/10.14088/j.cnki.issn0439-8114.2020.16.021</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Zheng, Z. (1993) <em>Hubei Plants Complete</em>. Wuhan University Press, Wuhan, 677 pp.</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Balfour, I.B. (1913) Chinese species of <em>Primula</em>. <em>Journal of the Royal Horticultural Society of London</em> 39: 128–167.</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Hao, G., Hu, Q.M. & Lee, M.S. (2002) Circumscriptions and Phylogenetic Relationships of <em>Primula</em> Sects. <em>Auganthus</em> and <em>Ranunculoides</em>: Evidence from <em>nrDNA ITS</em> Sequences. <em>Acta Botanica Sinica</em> 44: 72–75. https://doi.org/10.3321/j.issn:1672-9072.2002.01.012</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Hu, C.M. & Kelso, S. (1996) Primulaceae.<em> In: </em>Wu, Z.Y. & Raven, P.H. (Eds.) <em>Flora of China</em>. Vol. 15. Science Press, Beijing & Missouri Botanical Garden Press, St. Louis, pp. 39–185.</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Hu, C.M. (1990) <em>Primula</em>.<em> In: </em>Chen, F.H. & Hu, C.M. (Eds.) <em>Flora Reipublicae Popularis Sinicae</em>. Vol. 59 (2). Science Press, Beijing, pp. 1–277.</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">IUCN. (2001) IUCN red list categories and criteria, ver. 3.1. IUCN Species Survival Commission. [https://www.iucnredlist.org/]</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Li, X.W., Bao, D.C., Huang, H.D. & Xie, J.F. (2017) <em>Primula</em> <em>hubeiensis</em> (Primulaceae), a new species from Central China. <em>Novon</em> 25: 162–165. https://doi.org/10.3417/2016032</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Lindley, J. (1821) <em>Primula sinensis. In:</em> <em>Collectanea Botanica</em>. Tab. 7.</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Linnaeus, C. (1753) <em>Species Plantarum</em>. Vol.1. Impensis Laurentii Salvii, Holmiae (Stockholm), 560 pp.</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Mast, A.R., Kelso, S., Richards, A.J., Lang, D.J., Feller, D.M. & Conti, E. (2001) Phylogenetic relationships in <em>Primula</em> L. and related genera (Primulaceae) based on noncoding chloroplast DNA. <em>International Journal of Plant Sciences</em> 162 (6): 1381–1400. https://doi.org/10.1086/323444</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Mast, A.R., Kelso, S. & Conti, E. (2006) Are any primroses (<em>Primula</em>) primitively monomorphic? <em>New Phytologist</em> 171 (3): 605–616. https://doi.org/10.1111/j.1469-8137.2006.01700.x</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Richards, A.J. (2003) <em>Primula</em>. Timber Press, Portland, 386 pp.</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Sun, J., Zhang, D.G., Huang, X.H., Tojibaev, K. & Deng, T. (2020) <em>Primula</em> <em>sunhangii</em> (Primulaceae): a new species from Hubei, Central China. <em>PhytoKeys</em> 156: 103–112. https://doi.org/10.3897/phytokeys.156.49137</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Xie, J., Li, X.W. & Gan, Q.L. (2009) Some new recorded plants of Pteridophyte and Spermatophyte from Hubei. <em>Chinese Wild Plant Resource</em> 28 (3): 27–31. https://doi.org/10.3969/j.issn.1006-9690.2009.03.009</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Xu, Y., Deng, Y.F., Hao, G. & Hu, C.M. (2020) Proposal to conserve the name <em>Primula sinensis</em> Sabine ex Lindl. against <em>P. sinensis</em> Lour. (Primulaceae). <em>Taxon</em> 69 (4): 831–832. https://doi.org/10.1002/tax.12307</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Yang, L.S., Peng, J.L., Li, H.T., Wang, J. & Xie, X.L. (2020) Discovery and research of new distribution species of endangered plants <em>Primula mallophylla</em> in Hubei province. <em>Hubei Agricultural Sciences</em> 59 (16): 100–101. https://doi.org/10.14088/j.cnki.issn0439-8114.2020.16.021</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Zheng, Z. (1993) <em>Hubei Plants Complete</em>. Wuhan University Press, Wuhan, 677 pp.</span></span></span></p>