Deyeuxia himalaica (Poaceae, Agrostidinae): taxonomy and its first record from Myanmar

Paszko, Beata

doi:10.11646/phytotaxa.156.5.4

Cited by 13 publications

(7 citation statements)

References 17 publications

(1 reference statement)

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“…A series of recent papers has clarified numerous lower-level taxonomic issues among multiple Eurasian taxa of Agrostis , Calamagrostis and Deyeuxia (many from the far East) and described new species, most not yet included in molecular studies (Paszko and Nobis 2010, Paszko 2011, 2012a, b, 2013, 2014a, b, c, d, e, 2015, 2016, Paszko and Ma 2011, Paszko and Chen 2013, Paszko and Pendry 2013a, b, Paszko and Soreng 2013, Paszko et al 2013, 2015, Nobis et al 2014). In Mexico and Central America, species are treated in Calamagrostis (Beetle 1987, Pohl and Davidse 1994, Peterson et al 2004).…”

Section: Discussionmentioning

confidence: 99%

Molecular phylogenetics of cool-season grasses in the subtribes Agrostidinae, Anthoxanthinae, Aveninae, Brizinae, Calothecinae, Koeleriinae and Phalaridinae (Poaceae, Pooideae, Poeae, Poeae chloroplast group 1)

Saarela¹,

Bull²,

Paradis³

et al. 2017

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Circumscriptions of and relationships among many genera and suprageneric taxa of the diverse grass tribe Poeae remain controversial. In an attempt to clarify these, we conducted phylogenetic analyses of >2400 new DNA sequences from two nuclear ribosomal regions (ITS, including internal transcribed spacers 1 and 2 and the 5.8S gene, and the 3’-end of the external transcribed spacer (ETS)) and five plastid regions (matK, trnL–trnF, atpF–atpH, psbK–psbI, psbA–rps19–trnH), and of more than 1000 new and previously published ITS sequences, focused particularly on Poeae chloroplast group 1 and including broad and increased species sampling compared to previous studies. Deep branches in the combined plastid and combined ITS+ETS trees are generally well resolved, the trees are congruent in most aspects, branch support across the trees is stronger than in trees based on only ITS and fewer plastid regions, and there is evidence of conflict between data partitions in some taxa. In plastid trees, a strongly supported clade corresponds to Poeae chloroplast group 1 and includes Agrostidinae p.p., Anthoxanthinae, Aveninae s.str., Brizinae, Koeleriinae (sometimes included in Aveninae s.l.), Phalaridinae and Torreyochloinae. In the ITS+ETS tree, a supported clade includes these same tribes as well as Sesleriinae and Scolochloinae. Aveninae s.str. and Sesleriinae are sister taxa and form a clade with Koeleriinae in the ITS+ETS tree whereas Aveninae s.str. and Koeleriinae form a clade and Sesleriinae is part of Poeae chloroplast group 2 in the plastid tree. All species of Trisetum are part of Koeleriinae, but the genus is polyphyletic. Koeleriinae is divided into two major subclades: one comprises Avellinia, Gaudinia, Koeleria, Rostraria, Trisetaria and Trisetum subg. Trisetum, and the other Calamagrostis/Deyeuxia p.p. (multiple species from Mexico to South America), Peyritschia, Leptophyllochloa, Sphenopholis, Trisetopsis and Trisetum subg. Deschampsioidea. Graphephorum, Trisetum cernuum, T. irazuense and T. macbridei fall in different clades of Koeleriinae in plastid vs. nuclear ribosomal trees, and are likely of hybrid origin. ITS and matK trees identify a third lineage of Koeleriinae corresponding to Trisetum subsect. Sibirica, and affinities of Lagurus ovatus with respect to Aveninae s.str. and Koeleriinae are incongruent in nuclear ribosomal and plastid trees, supporting recognition of Lagurus in its own subtribe. A large clade comprises taxa of Agrostidinae, Brizinae and Calothecinae, but neither Agrostidinae nor Calothecinae are monophyletic as currently circumscribed and affinities of Brizinae differ in plastid and nuclear ribosomal trees. Within this clade, one newly identified lineage comprises Calamagrostis coarctata, Dichelachne, Echinopogon (Agrostidinae p.p.) and Relchela (Calothecinae p.p.), and another comprises Chascolytrum (Calothecinae p.p.) and Deyeuxia effusa (Agrostidinae p.p.). Within Agrostidinae p.p., the type species of Deyeuxia and Calamagrostis s.str. are closely related, supporting classification of Dey...

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Section: Discussionmentioning

confidence: 99%

Molecular phylogenetics of cool-season grasses in the subtribes Agrostidinae, Anthoxanthinae, Aveninae, Brizinae, Calothecinae, Koeleriinae and Phalaridinae (Poaceae, Pooideae, Poeae, Poeae chloroplast group 1)

Saarela¹,

Bull²,

Paradis³

et al. 2017

Self Cite

145

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“…Calamagrostis himalaica (Liou ex W. L. Chen emend. Paszko) Paszko, C. debilis, and C. gaoligongensis have similar distribution limits in China (Paszko & Pendry 2013;Paszko 2014Paszko , 2015.…”

Section: Distribution Eighteen Herbarium Sheets Ofmentioning

confidence: 90%

Calamagrostis nyingchiensis, a new combination for Deyeuxia nyingchiensis (Poaceae: Agrostidinae), and its first record from Yunnan Province, SW China

Paszko

2016

Polish Botanical Journal

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Abstract. Deyeuxia nyingchiensis is here recombined as Calamagrostis nyingchiensis comb. nov. as a result of recent studies of worldwide Agrostidinae. A new record of C. nyingchiensis is reported from Shangri-la (Zhongdian) County in Yunnan Province, SW China. Previously, C. nyingchiensis was noted from eastern Xizang and southern Sichuan, SW China. It is compared with the morphologically similar species C. scabrescens. A map with all known geographic records of C. nyingchiensis is presented.

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“…taxonomic investigations of eurasian species in three closely related genera, Agrostis Linnaeus (1753: 61), Calamagrostis adanson (1763: 31) and Deyeuxia Clarion ex Beauvois (1812: 43) (Poaceae: agrostidinae) have resulted nomenclatural and taxonomic changes (Paszko & Ma 2011, Paszko 2012a, Paszko & Pendry 2013a, Paszko & Soreng 2013, Paszko 2014a, and the description of three new species (Paszko 2012b, Paszko & Pendry 2013b. Here, the precise lectotypification of Grisebach's (1868: 80) name C. emodensis is provided.…”

Section: Introductionmentioning

confidence: 96%

Typification of Grisebach’s name Calamagrostis emodensis (Poaceae, Agrostidinae)

Paszko¹

2014

Phytotaxa

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Deyeuxia himalaica (Poaceae, Agrostidinae): taxonomy and its first record from Myanmar

Cited by 13 publications

References 17 publications

Molecular phylogenetics of cool-season grasses in the subtribes Agrostidinae, Anthoxanthinae, Aveninae, Brizinae, Calothecinae, Koeleriinae and Phalaridinae (Poaceae, Pooideae, Poeae, Poeae chloroplast group 1)

Molecular phylogenetics of cool-season grasses in the subtribes Agrostidinae, Anthoxanthinae, Aveninae, Brizinae, Calothecinae, Koeleriinae and Phalaridinae (Poaceae, Pooideae, Poeae, Poeae chloroplast group 1)

Calamagrostis nyingchiensis, a new combination for Deyeuxia nyingchiensis (Poaceae: Agrostidinae), and its first record from Yunnan Province, SW China

Typification of Grisebach’s name Calamagrostis emodensis (Poaceae, Agrostidinae)

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