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. 2025 Sep 29:263:195-207.
doi: 10.3897/phytokeys.263.163085. eCollection 2025.

 Ligusticopsis shaniana, a new combination separated from Peucedanum sensu lato (Apiaceae) on the basis of morphological and phylogenetic evidence

Chang-Kun Liu  1   2 , Bo-Ni Song  1 , Jia-Qing Lei  1 , Xing-Jin He  1 , Song-Dong Zhou  1
Affiliations

 Ligusticopsis shaniana, a new combination separated from Peucedanum sensu lato (Apiaceae) on the basis of morphological and phylogenetic evidence

Chang-Kun Liu et al. PhytoKeys. .

Abstract

The genus Peucedanum sensu lato is one of the most taxonomically difficult taxa within Apiaceae, including many medically and economically valuable plants. Although previous studies performed several taxonomic revisions for this genus, the taxonomic position of many taxa in the genus still has not been satisfactorily resolved, especially those endemic to China. In this study, to clarify the taxonomic position of Peucedanum shanianum, we performed comprehensive morphological and molecular analyses for this species. Morphological comparisons showed that Peucedanum shanianum has pinnate leaves, both pinnate and linear bracteoles, and numerous vittae in the mericarp commissure and each furrow, which are extremely similar to the genus Ligusticopsis but clearly different from Peucedanum sensu stricto, which has ternate leaves, linear-subulate or filiform bracteoles, a single vitta in a furrow, and two vittae on the commissure in a mericarp. However, mericarps with filiform dorsal ribs and linear bracts can easily distinguish Peucedanum shanianum from other Ligusticopsis members. Furthermore, phylogenetic analyses based on plastome data and ITS sequences indicated that Peucedanum shanianum is only distantly related to Peucedanum sensu stricto members but nested in Ligusticopsis. Therefore, combining the evidence of morphology and phylogeny, we suggest that Peucedanum shanianum should be transferred to Ligusticopsis, and a new combination (Ligusticopsis shaniana) is proposed.

Keywords: China; Peucedanum sensu lato; morphology; phylogeny.

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Conflict of interest statement

The authors have declared that no competing interests exist.

Figures

Figure 1.
Figure 1.
Distribution of Peucedanum shanianum.
Figure 2.
Figure 2.
Illustrations of Peucedanum shanianum. A. Habit; B. Umbel with bracts and bracteoles; C. Young mericarp with calyx teeth; D. Root with fibrous remnant sheaths; E. Dorsal of mericarp; F. Commissure of mericarp; G. Cross-section of mericarp.
Figure 3.
Figure 3.
Plastome map of Peucedanum shanianum. The genes exhibited outside of the circle are transcribed clockwise, while those inside are counterclockwise. The genes belonging to different functional groups are color-coded.
Figure 4.
Figure 4.
Phylogeny of Peucedanum shanianum inferred from maximum likelihood (ML) and Bayesian inference (BI) analyses based on plastome data. Numbers represent maximum likelihood bootstrap values (BS) and Bayesian posterior probabilities (PP).
Figure 5.
Figure 5.
Phylogeny of Peucedanum shanianum inferred from maximum likelihood (ML) and Bayesian inference (BI) analyses based on ITS sequences. Numbers represent maximum likelihood bootstrap values (BS) and Bayesian posterior probabilities (PP). * means that the value of the node is less than 50%.
Figure 6.
Figure 6.
Specimen images of Peucedanum shanianum. A. Holotype; B. Isotype.
See this image and copyright information in PMC

References

    1. Chen FL, Deng YF. (2019) Peucedanum shanianum, a new replaced name for P. rubricaule R. H. Shan & M. L. Sheh (Apiaceae). Phytotaxa 387(3): 267–268. 10.11646/phytotaxa.387.3.9 - DOI
    1. Chen SF, Zhou YQ, Chen YR, Gu J. (2018) Fastp: An ultra-fast all-in-one FASTQ preprocessor. Bioinformatics 34(17): 884–890. 10.1093/bioinformatics/bty560 - DOI - PMC - PubMed
    1. Clarkson JJ, Zuntini A, Mauri O, Downie SR, Plunkett GM, Nicolas AN, Smith JF, Feist MA, Gutierrez K, Malakasi P, Bailey P, Brewer GE, Epitawalage N, Zmarzty S, Forest F, Baker WJ. (2021) A higher‐level nuclear phylogenomic study of the carrot family (Apiaceae). American Journal of Botany 108(7): 1252–1269. 10.1002/ajb2.1701 - DOI - PubMed
    1. Dierckxsens N, Mardulyn P, Smits G. (2017) NOVOPlasty: De novo assembly of organelle genomes from whole genome data. Nucleic Acids Research 45(4): 1–18. 10.1093/nar/gkw955 - DOI - PMC - PubMed
    1. Downie SR, Watson MF, Spalik K, Katz-Downie DS. (2000) Molecular systematics of Old World Apioideae (Apiaceae): Relationships among some members of tribe Peucedaneae sensu lato, the placement of several island-endemic species, and resolution within the apioid superclade. Canadian Journal of Botany 78(4): 506–528. 10.1139/b00-029 - DOI