Abstract
Careful examination of herbarium specimens and observation of living plants demonstrated that Synotis damiaoshanica is conspecific with S. guizhouensis and should be merged. Morphological differences of S. guizhouensis and its two most close allies, i.e. S. austroyunnanensis and S. sinica are discussed. Color plates of S. guizhouensis, S. damiaoshanica and S. austroyunnanensis are illustrated, a distribution map and a key to the three species are provided.
References
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<p>Li, H.M., Lazkov, G.A., Illarionova, I.D., Tong, T.J., Shao, Y.Y. & Ren, C. (2018) Transfer of <em>Senecio karelinioides</em> (Asteraceae-Senecioneae) to <em>Synotis</em> based on evidence from morphology, karyology and ITS/ETS sequence data. <em>Nordic Journal of Botany</em> 32: 1–12. https://doi.org/10.1111/njb.01838</p>
<p>Ruan, Y.Q., Liu, Y.L., Wu, X.H., Yu, F. & Tang, M. (2020) A newly recorded species and clarification of the distribution record of another species within <em>Synotis</em> in Yunnan. <em>Journal of Gansu Agricultural University</em> 55 (2): 112–123.</p>
<p>Sennikov, A.N., Nuraliev, M.S., Kuznetsov, A.N. & Kuznetsova, S.P. (2020) New national records of Asteraceae from Hoang Lien National Park, northern Vietnam. <em>Wulfenia</em> 27: 1–9.</p>
<p>Tang, M. (2014) <em>A Systematic Study of the Genus Synotis (Compositae-Senecioneae)</em>. Ph.D. thesis. University of Chinese Academy of Sciences, Beijing.</p>
<p>Tang, M., Wang, L.Y. & Yang, Q.E. (2013) <em>Synotis xinningensis</em> (Asteraceae), a new species from Hunan, China. <em>Botanical Studies</em> 54: 16. https://doi.org/10.1186/1999-3110-54-16</p>
<p>Chen, Y.L. (1999) <em>Synotis</em> (C. B. Clarke) C. Jeffrey & Y.L. Chen. <em>In</em>: Chen, Y.L. (Ed.) <em>Flora Reipublicae Popularis Sinicae</em>, vol. 77 (1). Science Press, Beijing, pp. 167–217.</p>
<p>Chen, Y.L. & Liu, D.J. (1989) <em>Synotis</em> (C. B. Clarke) C. Jeffrey & Y. L. Chen. <em>In</em>: Chen, Y.L. (Ed.) <em>Flora Guizhouensis</em>, vol. 9. Sichuan Ethnic Publishing House, Chengdu, pp. 266–267.</p>
<p>Chen, Y.L., Nordenstam, B. & Jeffrey, C. (2011) <em>Synotis</em> (C. B. Clarke) C. Jeffrey & Y.L. Chen. <em>In</em>: Wu, Z.Y & Raven, P.H. (Eds.) <em>Flora of China</em>, vols. 20–21. Science Press, Beijing & Missouri Botanical Garden Press, St. Louis, pp. 489–505.</p>
<p>Chang, C.C. (1936) Contributions to the knowledge of Chinese Compositae. <em>Bulletin of the Fan Memorial Institute of Biology </em>7: 153–164.</p>
<p>Diels, L. (1901) Die Flora von Central-China: Nach der vorhandenen Literatur und neu mitgeteiltem Original-Materiale. <em>Botanische Jahrbucher fur Systematik, Pflanzengeschichte und Pflanzengeographie</em> 29 (5): 169–659.</p>
<p>Hu, S.Y. (1968) The Compositae of China (VIII). <em>Quarterly Journal of the Taiwan Museum</em> 21: 3–52.</p>
<p>Jeffrey, C. & Chen, Y.L. (1984) Taxonomic studies on the tribe Senecioneae (Compositae) of Eastern Asia. <em>Kew Bulletin</em> 39 (2): 205–446. https://doi.org/10.2307/4110124</p>
<p>Léveillé, H. (1914) Novae Gynurae sinenses. <em>Bulletin de L’Académie Internationale de Géographie, Botanique</em> 24: 283–284.</p>
<p>Li, H.M., Lazkov, G.A., Illarionova, I.D., Tong, T.J., Shao, Y.Y. & Ren, C. (2018) Transfer of <em>Senecio karelinioides</em> (Asteraceae-Senecioneae) to <em>Synotis</em> based on evidence from morphology, karyology and ITS/ETS sequence data. <em>Nordic Journal of Botany</em> 32: 1–12. https://doi.org/10.1111/njb.01838</p>
<p>Ruan, Y.Q., Liu, Y.L., Wu, X.H., Yu, F. & Tang, M. (2020) A newly recorded species and clarification of the distribution record of another species within <em>Synotis</em> in Yunnan. <em>Journal of Gansu Agricultural University</em> 55 (2): 112–123.</p>
<p>Sennikov, A.N., Nuraliev, M.S., Kuznetsov, A.N. & Kuznetsova, S.P. (2020) New national records of Asteraceae from Hoang Lien National Park, northern Vietnam. <em>Wulfenia</em> 27: 1–9.</p>
<p>Tang, M. (2014) <em>A Systematic Study of the Genus Synotis (Compositae-Senecioneae)</em>. Ph.D. thesis. University of Chinese Academy of Sciences, Beijing.</p>
<p>Tang, M., Wang, L.Y. & Yang, Q.E. (2013) <em>Synotis xinningensis</em> (Asteraceae), a new species from Hunan, China. <em>Botanical Studies</em> 54: 16. https://doi.org/10.1186/1999-3110-54-16</p>