2021
DOI: 10.11646/phytotaxa.516.3.7
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Quercus ngochoaensis (Fagaceae), a new species from Ba Vi National Park, northern, Vietnam

Abstract: A new species of Quercus (Fagaceae), Q. ngochoaensis, from Ba Vi National Park, Ha Noi, northern Vietnam is described and illustrated. This species is morphologically similar to Q. glauca in having glabrous twigs, cuneate leaf base, two or three fruits per infructescence, almost entire margin of lamellate rings on cupule except the lowest three rings, slightly convex scar at the base of a nut. However, it differs from Q. glauca in having smaller leaves, cup-shaped cupule enclosing 1/2–2/3 of the nut, 7–8 lamel… Show more

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Cited by 5 publications
(9 citation statements)
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“…During a field excursion to the Son Tra Nature Reserve carried out in 2016 and 2019, we collected specimens of Quercus from 340 m to 430 m altitude, which we were unable to allocate to a described species. Further studies, based on specimens in the herbaria such as DLU, FU, HN, P and VNM, the digitised specimen images on the website of JSTOR Global Plants and literature on related species ( Camus 1936–1954 ; Huang et al 1999 ; Ho 2003 ; Ban 2005 ; Phengklai 2008 ; Li et al 2016 ; Binh et al 2018a , b , c ; Binh et al 2021 ), showed that the samples were morphologically distinct from previously known taxa of the genus Quercus . In addition to using morphological evidence, the evidence from molecular analyses is helpful for delimiting species of the Fagaceae family.…”
Section: Introductionmentioning
confidence: 97%
See 1 more Smart Citation
“…During a field excursion to the Son Tra Nature Reserve carried out in 2016 and 2019, we collected specimens of Quercus from 340 m to 430 m altitude, which we were unable to allocate to a described species. Further studies, based on specimens in the herbaria such as DLU, FU, HN, P and VNM, the digitised specimen images on the website of JSTOR Global Plants and literature on related species ( Camus 1936–1954 ; Huang et al 1999 ; Ho 2003 ; Ban 2005 ; Phengklai 2008 ; Li et al 2016 ; Binh et al 2018a , b , c ; Binh et al 2021 ), showed that the samples were morphologically distinct from previously known taxa of the genus Quercus . In addition to using morphological evidence, the evidence from molecular analyses is helpful for delimiting species of the Fagaceae family.…”
Section: Introductionmentioning
confidence: 97%
“…The genus Quercus contains more than 500 species worldwide, amongst which about 400 species from the Americas, Europe, North Africa and Macaronesia and about 125 species were reported from Asia ( Govaerts and Frodin 1998 ; Borazan and Babaç 2003; Hubert et al 2014 ), 50 of which are distributed in Vietnam ( Ho 2003 ; Ban 2005 ; Li et al 2016 ; Binh et al 2018a , b , c ; Binh et al 2021 ). Quercus species are usually trees or sometimes shrubs that mostly occur in tropical montane forests in Southeast Asia and are often dominant in temperate deciduous forests in East Asia, Europe, North America, the Mediterranean and in desert scrubs of North America ( Nixon 1993 ; Huang et al 1999 ; Phengklai 2008 ; Hubert et al 2014 ; Valencia-A et al 2016 ).…”
Section: Introductionmentioning
confidence: 99%
“… Quercus L. is the biggest genus of the family Fagaceae , comprising more than 500 species widely distributed in Europe, North America, the Mediterranean, temperate deciduous forests in East Asia, and tropical montane forests in Southeast Asia ( Nixon 1993 ; Huang et al 1999 ; Phengklai 2008 ; Hubert et al 2014 ; Valencia-A et al 2016 ). In Vietnam, a total of 52 Quercus species have been reported ( Ho 2003 ; Ban 2005 ; Li et al 2016 ; Binh et al 2018a , b , c ; Binh et al 2021 ; Ngoc et al 2022 ), of which, recent efforts in taxonomic works of the genus Quercus have resulted in the description of seven new species from Vietnam ( Binh et al 2018a , b , c ; Binh et al 2021 ; Ngoc et al 2022 ), indicating that the species diversity of Quercus of the country is significant. Therefore, taxonomic studies of the Vietnamese Quercus are still required.…”
Section: Introductionmentioning
confidence: 99%
“…Binh & Ngoc (Binh et al 2018a), Q. honbaensis H.T.Binh, Tagane & Yahara (Binh et al 2018a), Q. trungkhanhensis H.T. Binh & Ngoc (Binh et al 2018b), Q. xuanlienensis H.T.Binh, Ngoc & T.N.Bon (Binh et al 2018c), and Q. ngochoaensis Binh & Son (Binh et al 2021).…”
Section: Introductionmentioning
confidence: 99%
“… xuanlienensis H.T.Binh, Ngoc & T.N.Bon ( Binh et al 2018c ), and Q. ngochoaensis Binh & Son ( Binh et al 2021 ).…”
Section: Introductionunclassified