Aporosa tetragona Tagane & V. S. Dang (Phyllanthaceae), a new species from Mt. Hon Ba, Vietnam

Shuichiro Tagane; Van Son Dang; Hironori Toyama; Akiyo Naiki; Hidetoshi Nagamasu; Tetsukazu Yahara; Hop Tran

doi:10.3897/phytokeys.57.6347

Aporosa tetragona Tagane & V. S. Dang (Phyllanthaceae), a new species from Mt. Hon Ba, Vietnam

PhytoKeys. 2015 Dec 2:(57):51-60. doi: 10.3897/phytokeys.57.6347. eCollection 2015.

Authors

Shuichiro Tagane¹, Van Son Dang¹, Hironori Toyama¹, Akiyo Naiki², Hidetoshi Nagamasu³, Tetsukazu Yahara¹, Hop Tran⁴

Affiliations

¹ Center for Asian Conservation Ecology, Kyushu University, 744 Motooka, Fukuoka, 819-0395, Japan.
² Iriomote Station, Tropical Biosphere Research Center, University of the Ryukyus, 870 Uehara, Taketomi-cho, Yaeyama-gun, Okinawa, 907-1541 Japan.
³ The Kyoto University Museum, Kyoto University, Yoshida Honmachi, Sakyo-ku, Kyoto, 606-8501, Japan.
⁴ University of Science Ho Chi Minh City, 227 Nguyen Van Cu Street, District 5, Ho Chi Minh City, Viet Nam.

Abstract

A new species, Aporosa tetragona Tagane & V. S. Dang, sp. nov., is described and illustrated from Mt. Hon Ba located in the Khanh Hoa Province, South Vietnam. This species is characterized by tetragonal pistillate flowers and fruits, which are clearly distinguishable from the other previously known species of the genus. The morphology and phylogeny based on rbcL and matK of this species indicated that the new species belongs to section Appendiculatae Pax & K. Hoffm.

Keywords: Aporosa; Hon Ba Nature Reserve; Phyllanthaceae; Vietnam; new species.