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Tang M, Wang LY, Yang QE. Synotis xinningensis (Asteraceae), a new species from Hunan, China. Bot Stud. 2013;54(1):16doi: 10.1186/1999-3110-54-16.
Tang, M., Wang, L. Y., & Yang, Q. E. (2013). Synotis xinningensis (Asteraceae), a new species from Hunan, China. Botanical studies, 54(1), 16. https://doi.org/10.1186/1999-3110-54-16
Tang, Ming, et al. "Synotis xinningensis (Asteraceae), a new species from Hunan, China." Botanical studies vol. 54,1 (2013): 16. doi: https://doi.org/10.1186/1999-3110-54-16
Tang M, Wang LY, Yang QE. Synotis xinningensis (Asteraceae), a new species from Hunan, China. Bot Stud. 2013 Dec;54(1):16. doi: 10.1186/1999-3110-54-16. Epub 2013 Aug 23. PMID: 28510858; PMCID: PMC5432852.
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Bot Stud. 2013 Dec;54(1):16. doi: 10.1186/1999-3110-54-16. Epub 2013 Aug 23.

Synotis xinningensis (Asteraceae), a new species from Hunan, China.

Botanical studies

Ming Tang, Long-Yuan Wang, Qin-Er Yang

Affiliations

  1. Key Laboratory of Plant Resources Conservation and Sustainable Utilization, South China Botanical Garden, Chinese Academy of Sciences, Xingke Road, Tianhe District, Guangzhou, 510650, China.
  2. University of Chinese Academy of Sciences, Beijing, 100049, China.
  3. School of Life Science, Sun Yatsen University, Guangzhou, 510275, China.
  4. Key Laboratory of Plant Resources Conservation and Sustainable Utilization, South China Botanical Garden, Chinese Academy of Sciences, Xingke Road, Tianhe District, Guangzhou, 510650, China. [email protected].

PMID: 28510858 PMCID: PMC5432852 DOI: 10.1186/1999-3110-54-16

Abstract

BACKGROUND: Synotis is one of the several genera within Senecioneae (Asteraceae) with more than 40 species that are mainly distributed in China or in the Sino-Himalayan region. During a botanical expedition in central and southwestern China in 2011, we found an unusual population of Synotis in southwestern Hunan Province. To determine the taxonomic identity of the population, we carried out gross-morphological, floral micromorphological, and cytological observations.

RESULTS: Our gross-morphological observations have shown that the population is most similar to Synotis changiana Y. L. Chen, but readily distinguishable in the discoid capitula (vs. radiate), and in the bracts of calyculus 9-10 (vs. 6-8), 6-7 mm long (vs. 3-4 mm). The floral micromorphological observations on the population and S. changiana agree with previous reports for other species of Synotis. The chromosomes of the population are counted to be 2n = 40 + 0-1B. Its karyotype is formulated as 2n = 22m + 14sm + 4st.

CONCLUSIONS: The population is determined to represent a new species, i.e. Synotis xinningensis M. Tang & Q. E. Yang, which is described herein. The new species belongs to Synotis ser. Synotis.

Keywords: Asteraceae; Chromosome number; Karyotype; Senecioneae; Synotis xinningensis

References

  1. Mol Phylogenet Evol. 2006 Jan;38(1):31-49 - PubMed

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