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Issue: Vol. 572 No. 1: 8 November 2022
Type: Article
Published: 2022-11-08
DOI: 10.11646/phytotaxa.572.1.2
Page range: 25-42
Abstract views: 154
PDF downloaded: 3

Raising Thalictrum uncatum var. angustialatum (Ranunculaceae) from China to T. angustialatum as an independent species based on evidence from morphology, geographical distribution, cytology and molecular systematics

Key Laboratory of Plant Resources Conservation and Sustainable Utilization, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, Guangdong, China; Center of Conservation Biology, Core Botanical Gardens, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, Guangdong, China; University of Chinese Academy of Sciences, Beijing 100049, China
Key Laboratory of Plant Resources Conservation and Sustainable Utilization, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, Guangdong, China; Center of Conservation Biology, Core Botanical Gardens, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, Guangdong, China
Key Laboratory of Plant Resources Conservation and Sustainable Utilization, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, Guangdong, China; Center of Conservation Biology, Core Botanical Gardens, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, Guangdong, China
chromosome number molecular phylogeny new combination new status taxonomy Eudicots

Abstract

Critical observations on living plants in the wild revealed remarkable differences in floral and achene characters between Thalictrum uncatum var. angustialatum (Ranunculaceae) and its type variety, T. uncatum var. uncatum, both from China. Their geographical distributions are basically independent, only slightly overlapping in western Sichuan and northwestern Yunnan. Moreover, T. uncatum var. angustialatum was found to be a tetraploid with the chromosome number of 2n = 4x = 28, whereas T. uncatum var. uncatum a diploid with 2n = 2x = 14. Furthermore, molecular phylogenetic analyses indicated that T. uncatum var. angustialatum was more closely related to T. sinomacrostigma, also a tetraploid, than to T. uncatum var. uncatum. Evidence from morphology, geographical distribution, cytology and molecular systematics, therefore, all indicates that T. uncatum var. angustialatum may better be raised to the specific rank as an independent species of its own, i.e. T. angustialatum. A full description is provided for T. angustialatum.

References

<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;"><span lang="en-GB">Boivin, B. (1944) American </span>Thalictra and their old world allies. Rhodora 46: 337–377; 391–445; 453–487. https://doi.org/10.5962/p.336293</span></span></span>

<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Boivin, B. (1945) Notes on some Chinese and Korean species of Thalictrum. Journal of the Arnold Arboretum 26: 111–118. https://doi.org/10.5962/p.185520</span></span></span>

<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Candolle, A.P. de (1817) Ranunculaceae. In: Regni Vegetabilis Systema Naturale, vol. 1. Treuttel & Würtz, Paris, pp. 127–394.</span></span></span>

<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Candolle, A.P. de (1824) Ranunculaceae. In: Prodromus Systematis Naturalis Regni Vegetabilis, vol. 1. Treuttel & Würtz, Paris, pp. 2?66.</span></span></span>

<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Emura, H.K.M. (1972) Cytotaxonomical studies on the genus Thalictrum in Eurasia with special reference to Japanese species. Journal of the Faculty of Science, The University of Tokyo, Section 3, Botany 11: 93–136.</span></span></span>

<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Finet, A.E. & Gagnepain, F. (1903) Contributions a la flore de l’Asie orientale d’aprés l’herbier du muséum de Paris. Bulletin de la Société Botanique de France 50: 600–625. https://doi.org/10.1080/00378941.1903.10831058</span></span></span>

<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Franchet, A. (1889–1890) Plantae Delavayanae. Paul Klincksieck, Paris, 240 pp. https://doi.org/10.5962/bhl.title.10529</span></span></span>

<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Fu, D.Z. & Zhu, G.H. (2001) Thalictrum Linnaeus. In: Wu, Z.Y., Raven, P.H. & Hong, D.Y. (Eds.) Flora of China, vol. 6. Science Press, Beijing & Missouri Botanical Garden Press, St. Louis, pp. 282–302.</span></span></span>

<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Hooker, J.D. & Thomson, T. (1855) Ranunculaceae. In: Hooker, J.D. & Thomson, T. (Eds.) Flora Indica, vol. 1. W. Pamplin, London, pp. 1–60.</span></span></span>

<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Langlet, O (1927) Beiträge zur Zytologie der Ranunculazeen. Svensk Botanisk Tidskrift 21: 1–17.</span></span></span>

<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Lecoyer, J.C. (1885) Monographie du genre Thalictrum. Bulletin de la Société Royale de Botanique de Belgique 24: 78–324.</span></span></span>

<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Linnaeus, C. (1753) Species Plantarum. Laurentii Salvii, Holmiae, 1200 pp.</span></span></span>

<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Luferov, A. (2014) Nomenclatural novelties of the family Ranunculaceae in the flora of China. Novitates Systematicae Plantarum Vascularium 45: 146?147.</span></span></span>

<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;"> Maximowicz, C.J. (1890) Plantae chinenses Potaninianae nec non Piasezkianae. Trudy Imperatorskago S.-Peterburgskago Botani?eskago Sada 11: 1–112.</span></span></span>

<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Prantl, K. (1887) Beiträge zur Morphologie und Systematik der Ranunculaceen. Botanische Jahrbücher für Systematik, Pflanzengeschichte und Pflanzengeographie 9: 225–273.</span></span></span>

<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Tamura, M. (1995) Thalictrum L. In: Hiepko, P. (Ed.) Die Natürlichen Pflanzenfamilien, Band 17 a IV. Duncker und Humblot, Berlin, pp. 474–494.</span></span></span>

<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Wang, W.T. (1993) Notulae de Ranunculaceis sinensibus (XV). Acta Phytotaxonomica Sinica 31: 201–226.</span></span></span>

<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Wang, W.T. (2018) Thalictrum (Ranunculaceae) in China. Peking University Press, Beijing, 376 pp.</span></span></span>

<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Wang, W.T. & Wang, S.H. (1979a) Addenda. In: Anonymous (Ed.) Flora Reipublicae Popularis Sinicae, vol. 27. Science Press, Beijing, pp. 603–622.</span></span></span>

<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Wang, W.T. & Wang, S.H. (1979b) Thalictrum L. In: Anonymous (Ed.) Flora Reipublicae Popularis Sinicae, vol. 27. Science Press, Beijing, pp. 502–592.</span></span></span>

<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Zeng, Y.P. (2022) Taxonomic studies of the genus Thalictrum L. (Ranunculaceae) from China. Ph.D. thesis, University of Chinese Academy of Sciences. Beijing, 701 pp.</span></span></span>

<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Zeng, Y.P., Yuan, Q. & Yang, Q.E. (2020) Thalictrum mairei (Ranunculaceae) is synonymous with T. foliolosum, not T. leuconotum. Phytotaxa 452: 137–154. https://doi.org/10.11646/phytotaxa.452.2.3</span></span></span>

<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Zeng, Y.P., Yuan, Q. & Yang, Q.E. (2021) Thalictrum jilongense and T. tenuicaule (Ranunculaceae), described from China, are both merged with T. leuconotum. Phytotaxa 509: 168–184. https://doi.org/10.11646/phytotaxa.509.2.2</span></span></span>

<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Zeng, Y.P., Yuan, Q. & Yang, Q.E. (2022) Thalictrum spiristylum (Ranunculaceae), described from northwestern Yunnan, China, is merged with T. atriplex. Phytotaxa 538: 1–20. https://doi.org/10.11646/phytotaxa.538.1.1</span></span></span>

How to Cite

Zeng, Y.-P., Yuan, Q. & Yang, Q.-E. (2022)

Raising Thalictrum uncatum var. angustialatum (Ranunculaceae) from China to T. angustialatum as an independent species based on evidence from morphology, geographical distribution, cytology and molecular systematics

. Phytotaxa 572 (1): 25–42. https://doi.org/10.11646/phytotaxa.572.1.2