Epimedium tianmenshanensis (Berberidaceae), a new species from central China

Zhang, Dai-Gui; Deng, Tao; King, Changkyun; Zhang, Jianwen; Nie, Ze‐Long; Sun, Hang

doi:10.11646/phytotaxa.222.1.3

Cited by 7 publications

(22 citation statements)

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“…Stem-leaves, however, are not so unvarying as initially supposed. Stearn (2002), Zhang et al (2015), and our field observation have recognized and recorded some variation on the number of leaves. For example, usually two opposite or occasionally three whorled leaves were observed in E. sagittatum (Sieb.…”

Section: Discussionmentioning

confidence: 74%

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A taxonomic revision of three Chinese spurless species of genus Epimedium L. (Berberidaceae)

Liu¹,

Liu²,

Huang³

et al. 2017

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Due to some common or similar features (e.g., small leaf, spurless, yellow flower), three Chinese species of the genus Epimedium (Berberidaceae), E. ecalcaratum, E. platypetalum, and E. campanulatum, are controversial based on morphological characteristics. In the present study, the descriptions of morphological characteristics for the three species were revised based on extensive studies and observations both in field and in herbaria. In general, E. ecalcaratum has long creeping rhizomes 1–3 mm in diameter, two alternate or opposite trifoliolate leaves, 7–14 flowers, and petals obovate and apex subacute. Epimedium platypetalum has short or long-creeping rhizomes 1–3 mm in diameter, one trifoliolate leaf, 2–6 flowers, and petals oblong and apex rounded. Epimedium campanulatum has compact rhizomes 4–6 mm in diameter, two alternate or opposite trifoliolate leaves, 15–43 flowers, and petals obovate and apex rounded. Through comparison, we found that despite the close affinity of these three species, they can be distinguished by rhizome differences, stem-leaves, the morphology of flower (e.g., petals), and the number of per inflorenscence.

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Section: Discussionmentioning

confidence: 74%

“…Forty-nine species have been reported in China (Ogisu and Rix 2011, Xu et al 2014, Zhang et al 2014, Zhang et al 2015, Zhang et al 2016, Wei et al 2017). Stearn (2002) divided the Chinese Epimedium into four series: Campanulatae , Davidianae , Dolichocerae , and Brachycerae .…”

Section: Introductionmentioning

confidence: 99%

A taxonomic revision of three Chinese spurless species of genus Epimedium L. (Berberidaceae)

Liu¹,

Liu²,

Huang³

et al. 2017

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“…After revision, 49 taxa (including one subspecies and two varieties) are now recognized (Xu et al 2020a). More than 40 new Chinese species of Epimedium have been published in the past three decades (Xu et al 2014, 2020a, Zhang et al 2015a. Many Chinese species of Epimedium are still imperfectly understood because they are only known from a limited number of specimens or even only from the type material (Stearn 1997, Zhang et al 2011, 2014a, Xu et al 2014.…”

Section: Introductionmentioning

confidence: 99%

“…Epimedium tianmenshanense T. Deng, D. G. Zhang & H. Sun (according to the International Code of Nomenclature, the specific epithet should be 'tianmenshanense', instead of 'tianmenshanensis'), from Tianmenshan National Geological Park, Zhangjiajie City in northwestern Hunan, China, was described and illustrated based on only three specimens (Zhang et al 2015a). It is a disputable taxon based on the descriptions of floral characteristics.…”

Section: Introductionmentioning

confidence: 99%

“…It is a disputable taxon based on the descriptions of floral characteristics. In the protologue, the authors described it as having short and blunt spurs (Zhang et al 2015a), by which it is clearly distinguished from other species, but in the abstract, the authors emphasized that the species is similar to E. baojingense Q. L. Chen & B. M. Yang and E. franchetii Stearn. Molecular evidence further indicated that E. tianmenshanense is closely related to E. baojingense (Zhang et al 2015a), which was later treated as a variety of E. franchetii, i.e.…”

Section: Introductionmentioning

confidence: 99%

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Continuous petal variation in Epimedium tianmenshanense (Berberidaceae), a taxon endemic to western Hunan, China

Huang

Yong

et al. 2020

Nordic Journal of Botany

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In the protologue, Epimedium tianmenshanense (Berberidaceae), a species endemic to western Hunan, China, was described as ‘flower small, 0.2–0.4 cm diam., inner sepals white, petals as long as inner sepals or a little shorter than the latter, spur very short, ca 5.0 mm’. However, both morphological characteristics and molecular evidence suggest that E. tianmenshanense is closely related to E. baojingense, a taxon with a long spur, thus suggesting that the size of the floral parts is not as reliable as previously believed. When investigating the variability of E. tianmenshanense in more detail, in the field as well as in cultivation, we found that the petals were are highly variable in morphology (both shape and size), being cucullate, subulate, short to long spurred, and with various transitions. The flowers size varied from small to large accordingly. The flowers with cucullate and subulate petals, which were a little shorter than the inner sepals or almost as long as the latter, were small (about 0.8 cm in diameter). The flowers with long spurs, which were much longer than the inner sepals, were also large (about 2.5–3.5 cm in diameter). Finally, the flowers with short spurs, which were a little longer than the inner sepals, were medium‐sized (about 1.0–1.2 cm in diameter). In addition, the color of inner sepals was revised from ‘white, occasionally light mulberry‐purple’ to yellowish green or yellowish white. Epimedium tianmenshanense is a perfect example of natural petal evolution, which could be used for further taxonomic and evolutionary studies. The reason for the variation and the taxonomic treatment of the species still need further study.

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The complete chloroplast genome of the rare species Epimedium tianmenshanensis and comparative analysis with related species

Liu

Zhang

et al. 2020

Physiol Mol Biol Plants

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Epimedium tianmenshanensis is a rare perennial herb distributed in China, and it is also an important medicinal plant. Here, we used illumina paired-end sequencing technology to obtain the complete chloroplast genome of E. tianmenshanensis, and compared analysis with related species. The length of the complete chloroplast genome of E. tianmenshanensis is 156,956 bp, which is a relatively conserved quadripartite structure including a large single copy (LSC) region of 88,409 bp, a small single copy (SSC) region of 17,448 bp, and a pair of inverted repeat (IRa/IRb) regions of 25,550 bp. The whole genome contains 132 unique genes, including 85 protein-coding genes, 38 tRNA genes, eight rRNA genes and one pseudogene. 87 simple sequence repeats (SSRs) were identified, and most of them were found to be composed of A/T. In addition, 22,923 codons were detected in 78 protein-coding genes of E. tianmenshanensis, and the overall codon bias pattern in the genome tended to use A/U ending codons. Phylogenetic analysis demonstrated that all the Epimedium species formed a monophyletic clade, and E. tianmenshanensis had the closest relationship to E. dolichostemon. The results of this study provided useful molecular information about the evolution and molecular biology of E. tianmenshanensis.

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Epimedium tianmenshanensis (Berberidaceae), a new species from central China

Cited by 7 publications

References 0 publications

A taxonomic revision of three Chinese spurless species of genus Epimedium L. (Berberidaceae)

A taxonomic revision of three Chinese spurless species of genus Epimedium L. (Berberidaceae)

Continuous petal variation in Epimedium tianmenshanense (Berberidaceae), a taxon endemic to western Hunan, China

The complete chloroplast genome of the rare species Epimedium tianmenshanensis and comparative analysis with related species

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