Morphological and molecular evidence reveals three new species of Lithocarpus (Fagaceae) from Bidoup-Nui Ba National Park, Vietnam

Nguyen Van Ngoc; Hoang Thi Binh; Ai Nagahama; Shuichiro Tagane; Hironori Toyama; Ayumi Matsuo; Yoshihisa Suyama; Tetsukazu Yahara

doi:10.3897/phytokeys.186.69878

Morphological and molecular evidence reveals three new species of Lithocarpus (Fagaceae) from Bidoup-Nui Ba National Park, Vietnam

PhytoKeys. 2021 Dec 6:186:73-92. doi: 10.3897/phytokeys.186.69878. eCollection 2021.

Authors

Nguyen Van Ngoc¹, Hoang Thi Binh¹, Ai Nagahama², Shuichiro Tagane³, Hironori Toyama⁴, Ayumi Matsuo⁵, Yoshihisa Suyama⁵, Tetsukazu Yahara^{2

6}

Affiliations

¹ Faculty of Biology, Dalat University, 01 - Phu Dong Thien Vuong, Dalat, Vietnam Dalat University Dalat Vietnam.
² Faculty of Science, Kyushu University, 744 Motooka, Fukuoka, 819-0395, Japan Kyushu University Fukuoka Japan.
³ The Kagoshima University Museum, Kagoshima University, 1-21-30 Korimoto, Kagoshima, 890-0065, Japan Kagoshima University Kagoshima Japan.
⁴ Biodiversity Division, National Institute for Environmental Studies, Tsukuba, Ibaraki, 305-8506, Japan Biodiversity Division, National Institute for Environmental Studies Ibaraki Japan.
⁵ Kawatabi Field Science Center, Graduate School of Agricultural Science, Tohoku University, 232-3 Yomogida, Naruko-onsen, Osaki, Miyagi 989-6711, Japan Tohoku University Miyagi Japan.
⁶ Kyushu Open University, 744 Motooka, Fukuoka, 819-0395, Japan Kyushu Open University Fukuoka Japan.

Abstract

Three new species, Lithocarpusbidoupensis Ngoc & Tagane, L.congtroiensis Ngoc & Yahara, and L.hongiaoensis Ngoc & Binh are described from Bidoup-Nui Ba National Park, Central Highland of Vietnam. Morphological analyses and Maximum likelihood tree based on genome-wide SNPs support the distinction of those species from the previously known taxa in the region. The three new species are considered to be endemic to the Bidoup-Nui Ba National Park and the preliminary conservation status for each species is evaluated as Critically Endangered.

Keywords: Fagales; Lam Dong Province; MIG-seq; phylogeny; taxonomy.

Nguyen Van Ngoc, Hoang Thi Binh, Ai Nagahama, Shuichiro Tagane, Hironori Toyama, Ayumi Matsuo, Yoshihisa Suyama, Tetsukazu Yahara.