New names in Heteropolygonatum (Asparagaceae)

Floden, Aaron

doi:10.11646/phytotaxa.188.4.4

Cited by 9 publications

(7 citation statements)

References 15 publications

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“…A–B) (Liu and Zeng ). Floden () transferred P. cirrhifoliodes and P. alternicirrhosum from Polygonatum to Heteropolygonatum based on chromosome numbers, morphological data and geographic distribution. In this research, two populations of P. cirrhifoliodes and P. alternicirrhosum were collected and the results showed that both species were grouped in Polygonatum group C. Here, P. cirrhifoliodes was grouped with P. alternicirrhosum in a single clade, while the two populations of P. cirrhifolium were parallel with other species in group C. Both species have the same basic chromosome numbers of x = 16 and terete rhizomes (Chen and Tamura , Zhao et al ).…”

Section: Discussionmentioning

confidence: 99%

A phylogenetic study of Chinese Polygonatum (Polygonateae, Asparagaceae)

Zhao

Zhou

2019

Nordic Journal of Botany

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Polygonatum Mill., which consists of more than 60 species are mainly distributed in eastern Asia, especially China and Japan, has received considerable attention from plant taxonomists. Nevertheless, there are still gaps in our knowledge of this genus, especially concerning those species that are endemic to China and which have often not been included in previous studies. Here, we re‐evaluate the taxonomy of 28 Chinese Polygonatum species with emphasis on molecular evidence. Phylogenetic analyses were carried out on sequence data from four plastid DNA regions: atpB‐rbcL, matK, rbcL and rps16, using maximum parsimony and Bayesian approaches. Analyses of the combined datasets of the four regions revealed that: 1) Chinese Polygonatum are monophyletic at the current level of sampling; 2) three major lineages in Polygonatum are well supported and largely correlated with cytological and morphological characters; 3) our results, along with the results of previous works support that P. simizui is a synonym of P. odoratum, and 4) Polygonatum cirrhifoliodes is shown to be distinct from P. cirrhifolium.

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Section: Discussionmentioning

confidence: 99%

A phylogenetic study of Chinese Polygonatum (Polygonateae, Asparagaceae)

Zhao

Zhou

2019

Nordic Journal of Botany

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“…Glyptos-trobus cannot be regarded as an endemic genus of gymnosperm because this species is also distributed in Vietnam and Laos (Thomas & LePage, 2011;Farjon, 2017). As for the angiosperms, the number of endemic genera has declined from 196 to 160 because some genera were reported to also occur outside the China (e.g., Heteropolygonatum [Floden, 2014]), and some genera (e.g., Smithorchis, Pendulorchis) are now treated as synonyms (Xiang et al, 2013;Jin et al, 2014Jin et al, , 2015. In the meantime, some new genera, like Dianyuea (Shang et al, 2017) and Wuacanthus (Deng et al, 2016), were added to the list.…”

Section: Endemicitymentioning

confidence: 99%

Diversity of higher plants in China

Dan

Liu

Zhao

et al. 2021

J of Sytematics Evolution

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The Species Catalogue of China: Volume 1: Plants (SCCP) is a new, comprehensive, hardcopy inventory of Chinese higher plants that combines several datasets and references to recent taxonomic treatments. The database, with all attached additional information, is freely accessible via the internet (http://www.sp2000.org.cn/) and on CD‐ROM, and will be updated yearly. It includes bryophytes (157 families, 599 genera, and 3167 specific and infraspecific taxa), lycophytes and ferns (41 families, 181 genera, and 2336 specific and infraspecific taxa), gymnosperms (10 families, 45 genera, and 311 specific and infraspecific taxa), and angiosperms (270 families, 3227 genera, and 35 873 specific and infraspecific taxa); in total 478 families, 4052 genera, and 41 687 specific and infraspecific taxa. Several other important statistics can also be drawn from the database, such as the distribution pattern of the four major groups of higher plants, as well as number of endemic and naturalized or cultivated genera/taxa. Entries in SCCP are also compared with Flora of China, and Flora reipublicae popularis Sinicae at the genus level. The SCCP will not only be a useful reference for floristic or biodiversity studies in China, but will also serve as a key resource to direct action and monitor progress. It is intended to be a useful resource for achieving Target 1 of the Global Strategy for Plant Conservation (GSPC).

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“…Moreover, Polygonatum species has a wide distribution in Asia, particularly in China, with diverse and mainly found in tropical cloud forests to temperate forests or shrub habitats, to alpine zones. In contrast, most other species from other countries appear in the form of terrestrial herbs (Floden, 2014).…”

Section: Introductionmentioning

confidence: 99%

“…Moreover, monocots usually have monosulcate or nanoporous pollen particles, although there are many exceptions. Sometimes the pore size is not detected, so sparse pollen grains in monocots are not uncommon (Furness & Rudall, 1999), but there are still significant differences regarding specific boundaries and distributions of Polygonatum (Chen & Tamura, 2000; Floden, 2014). Therefore, the present study was designed with the aim, (i) to study and document the pollen micromorphology of Polygonatum species, through SEM in more detail collected from different geographical regions of eastern China; (ii) to correctly identify and discriminate the closely related Polygonatum taxa based on the pollen traits; and (iii) to strengthen the taxonomy of the Polygonatum .…”

Section: Introductionmentioning

confidence: 99%

Pollen micromorphology of eastern Chinese Polygonatum and its role in taxonomy by using scanning electron microscopy

Ali

Liu

Xia

et al. 2021

Microscopy Res & Technique

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Although considerable progress has recently been made in the taxonomic study of Asparagaceae, but the Polygonatum remains one of the most poorly investigated genus. Therefore, the present study was designed with the aim, to document the pollen micromorphology of closely related Polygonatum taxa and its taxonomic significance. Pollen micro‐morphological features were observed using scanning electron microscopy—SEM). The pollen grains are monad, navicular, monocolpate, and radially symmetrical. A significant variation was observed in the exine sculpturing. Moreover, most of the Polygonatum taxa have perforate pollen while some of them were mixed with psilate to perforate, perforate to microreticulate, sometimes scabrate, gemmate with baculate. Hence, this study documented the pollen morphology of Polygonatum taxa and strengthens the taxonomic identification of the genus Polygonatum based on pollen characters, which helps and can be used as an additional tool for the correct identification and discrimination of the species of Polygonatum at generic and species level.

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New names in Heteropolygonatum (Asparagaceae)

Cited by 9 publications

References 15 publications

A phylogenetic study of Chinese Polygonatum (Polygonateae, Asparagaceae)

A phylogenetic study of Chinese Polygonatum (Polygonateae, Asparagaceae)

Diversity of higher plants in China

Pollen micromorphology of eastern Chinese Polygonatum and its role in taxonomy by using scanning electron microscopy

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