Taxonomic revision of Chenopodiaceae in Nepal

Sukhorukov, Alexander P.; Kushunina, Maria

doi:10.11646/phytotaxa.191.1.2

Cited by 26 publications

(81 citation statements)

References 28 publications

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“…It supplements previous detailed studies (Sukhorukov 2012a, 2012b, 2014, Sukhorukov & Zhang 2013, Sukhorukov & Kushunina, 2014.…”

Section: Carpological Differences Between the Native Tibetan And Himasupporting

confidence: 79%

“…The ranges of some native Asian Dysphania taxa (D. botrys, D. nepalensis and D. kitiae) are relatively well known (Uotila 2013, Sukhorukov & Kushunina 2014. Here we combine the previously published records (Sukhorukov 2012a, Uotila 2013 …”

Section: Distribution Pattern Of the Native Dysphania In China And Admentioning

confidence: 95%

“…In recent years, improvements have been made in the difficult genera Axyris Linnaeus (1753: 979) (Sukhorukov, 2011), Chenopodium s.str. Linnaeus (1753: 218), and Dysphania Brown (1810: 411) (Sukhorukov 2012a, 2012b, 2014, Uotila 2013, Sukhorukov & Kushunina 2014.…”

Section: Introductionmentioning

confidence: 99%

“…Botryoides are the minute papillate pericarp, and relatively small (0.7-1.1 mm) spherical seeds. The small-scale reproductive traits provide the most significant information about the species delimitation, and they are now well-studied and used as the most important diagnostic characters at species level (Uotila 2013, Sukhorukov & Kushunina 2014.…”

Section: Introductionmentioning

confidence: 99%

“…Until now, seven species were recognized as native in the Himalaya and Tibet (Sukhorukov & Kushunina, 2014): D. bhutanica Sukhorukov (2012a: 171), D. botrys (Linnaeus 1753: 219) Mosyakin & Clemants (2002: 383), D. himalaica Uotila (2013: 68), D. kitiae Uotila (2013: 75), D. neglecta Sukhorukov (2014: 347), D. nepalensis (Colla 1836: 25) Mosyakin & Clemants (2008: 428), and D. tibetica (Li 1983: 638) Uotila (2013: 67). In the present paper, a new Dysphania species from SW China (Xizang, Yunnan provinces) and Bhutan is described on the basis of several unique differences in general morphology and perianth indumentum.…”

Section: Introductionmentioning

confidence: 99%

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A new species of Dysphania (Chenopodioideae, Chenopodiaceae) from South-West Tibet and East Himalaya

2015

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Dysphania geoffreyi is described as a new species, with records in China (Xizang and Yunnan provinces) and Bhutan. It differs from morphologically similar taxa by virtue of the clustered flowers in the inflorescence, indumentum set on the perianth, terminally concave pericarp papillae, and smaller seeds 0.5-0.6 mm in diameter. In total eight native Dysphania species are identified in Himalaya and Tibet, and revised distribution patterns of D. bhutanica, D. himalaica and D. tibetica are presented. The most significant reproductive features of all native Dysphania taxa are summarized.

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“…It supplements previous detailed studies (Sukhorukov 2012a, 2012b, 2014, Sukhorukov & Zhang 2013, Sukhorukov & Kushunina, 2014.…”

Section: Carpological Differences Between the Native Tibetan And Himasupporting

confidence: 79%

Section: Distribution Pattern Of the Native Dysphania In China And Admentioning

confidence: 95%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

A new species of Dysphania (Chenopodioideae, Chenopodiaceae) from South-West Tibet and East Himalaya

2015

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Phylogeny, biogeography and systematics of Dysphanieae (Amaranthaceae)

Uotila

Sukhorukov

Bobon

et al. 2021

TAXON

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After a rather turbulent taxonomic history, Dysphanieae (Chenopodioideae, Amaranthaceae) were established to contain five genera, four of which are monospecific (Cycloloma, Neomonolepis, Suckleya, Teloxys) and geographically restricted, and the fifth genus, Dysphania, having a nearly worldwide distribution and comprising ca. 50 species. This study investigates the phylogeny, biogeography and taxonomy of Dysphanieae. We studied specimens from 32 herbaria to infer morphological differences and distribution areas of the species and sampled 121 accessions representing 39 accepted species of the tribe for molecular phylogenetic analyses. The molecular phylogeny tested generic relationships of the tribe and infrageneric relationships of Dysphania on the basis of two plastid DNA markers (atpB‐rbcL spacer, rpl16 intron) and two nuclear ribosomal markers (ETS, ITS) and was also used for an ancestral area reconstruction with BioGeoBEARS. Three of the monospecific genera (Neomonolepis, Suckleya, Teloxys) form a basal grade and appear to be relictual lineages of the tribe, while Cycloloma is nested within Dysphania. The ancestral area reconstruction favors a widespread ancestry for Dysphanieae, and the relictual lineages in Asia (Teloxys) and North America (Neomonolepis, Suckleya) might be explained by a wide distribution across Beringia during the Late Oligocene/Early Miocene. Dysphania likely originated in North America; however, the simultaneous diversification into three major clades, an Asian/African, an American and an Australian/African clade, indicates a widespread ancestor at the crown node of Dysphania. Our taxonomic revision results in four accepted genera in Dysphanieae, Dysphania, Neomonolepis, Suckleya and Teloxys. The sectional subdivision for Dysphania is revised. We subdivide the genus into five sections, D. sect. Adenois (13 spp.), D. sect. Botryoides (10 spp.), D. sect. Dysphania (17 spp.), D. sect. Incisa (2 spp.) and D. sect. Margaritaria (4 spp.); three strongly deviating species remain unplaced and need further attention.

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