TY - JOUR
T1 - A new species and two new records of Quercus (Fagaceae) from northern Vietnam
AU - Binh, Hoang Thi
AU - Ngoc, Nguyen Van
AU - Bon, Trinh Ngoc
AU - Tagane, Shuichiro
AU - Suyama, Yoshihisa
AU - Yahara, Tetsukazu
PY - 2018
Y1 - 2018
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=85041317448&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85041317448&partnerID=8YFLogxK
U2 - 10.3897/phytokeys.92.21831
DO - 10.3897/phytokeys.92.21831
M3 - Article
AN - SCOPUS:85041317448
SP - 1
EP - 15
JO - PhytoKeys
JF - PhytoKeys
SN - 1314-2011
IS - 92
ER -