Journal
PHYTOKEYS
Volume -, Issue 92, Pages 1-15Publisher
PENSOFT PUBLISHERS
DOI: 10.3897/phytokeys.92.21831
Keywords
Ba Vi National Park; DNA barcoding; Fagaceae; Quercus; Taxonomy; Vietnam; Xuan Lien Nature Reserve
Categories
Funding
- Ministry of the Environment, Japan [4-1601]
- MEXT/JSPS KAKENHI [JP15H02640, JP16H02553]
- JSPS
- Grants-in-Aid for Scientific Research [16H02553] Funding Source: KAKEN
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A new species, Quercus xuanlienensis Binh, Ngoc & Bon, is described from Xuan Lien Nature Reserve, Vietnam. The new species is morphologically similar to Q. edithiae Skan, in having 8-11 pairs of secondary veins, bowl-shaped cupules and ellipsoid to cylindrical-ellipsoid and basally convex nuts. It differs in having serrulate leaf margins only at apical 1/5-1/7, almost entire margins of bracts on cupule and much longer nuts. The species is also similar to Q. fleuryi Hickel & A. Camus in having leaves glabrous on both surfaces with only an apically serrulate margin but differs in having shorter petioles, cupules enclosing 1/5 of the nut and much longer nuts. In addition, Q. disciformis Chun & Tsiang. and Q. bella Chun & Tsiang., previously known from China, are newly recorded from Ba Vi National Park, Vietnam.
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