New orchids in the flora of Vietnam VIII (Orchidaceae: Epidendroideae, tribes Malaxideae, Neottieae and Podochileae) Author Averyanov, Leonid V. 0000-0001-8031-2925 Komarov Botanical Institute of the Russian Academy of Sciences, 2, Prof. Popov Street, 197022, St. Petersburg, Russia av_leonid@mail.ru Author Nguyen, Van Canh 0000-0001-9578-0342 Institute of Applied Technology, Thu Dau Mot University, No. 6, Tran Van On Street, Phu Hoa Ward, Thu Dau Mot City, Binh Duong Province, Vietnam nguyenvancanh@tdmu.edu.vn Author Vuong, Truong Ba 0000-0003-3452-8455 Institute of Tropical Biology, Vietnam Academy of Science and Technology, 85, Tran Quoc Toan Street, District 3, Ho Chi Minh City, Vietnam bavuong2019@yahoo.com Author Nuraliev, Maxim S. 0000-0001-8291-2633 Department of Higher Plants, Biological Faculty, M. V. Lomonosov Moscow State University, 1, 12, Leninskie Gory, 119234, Moscow, Russia & Joint Russian-Vietnamese Tropical Scientific and Technological Center, 63, Nguyen Van Huyen Street, Cau Giay District, 122000, Hanoi, Vietnam max.nuraliev@gmail.com Author Nguyen, Khang Sinh 0000-0001-5171-4140 Institute of Ecology and Biological Resources, Vietnam Academy of Science and Technology, 18, Hoang Quoc Viet Road, Cau Giay District, Hanoi, Vietnam & Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18, Hoang Quoc Viet Road, Cau Giay District, Hanoi, Vietnam nskhang@gmail.com Author Maisak, Tatiana V. 0000-0001-5919-6755 Komarov Botanical Institute of the Russian Academy of Sciences, 2, Prof. Popov Street, 197022, St. Petersburg, Russia tmaisak@mail.ru Author Yudova, Daria A. 0000-0002-3214-5795 Komarov Botanical Institute of the Russian Academy of Sciences, 2, Prof. Popov Street, 197022, St. Petersburg, Russia gloomy_lars@mail.ru Author Saidov, Nikita T. 0000-0002-3940-6628 Komarov Botanical Institute of the Russian Academy of Sciences, 2, Prof. Popov Street, 197022, St. Petersburg, Russia nick-saidov@yandex.ru Author Nguyen, Cuong Huu 0000-0003-2281-741X Vietnam National University of Forestry, Xuan Mai, Chuong My, Hanoi, Vietnam nguyenhuucuong.tvr@gmail.com Author Nong, Duy Van 0000-0002-1509-4412 Tay Nguyen Institute for Scientific Research, Vietnam Academy of Science and Technology, Da Lat, Vietnam nongvanduy07@yahoo.com.vn text Phytotaxa 2024 2024-07-02 658 1 1 49 http://dx.doi.org/10.11646/phytotaxa.658.1.1 journal article 10.11646/phytotaxa.658.1.1 1179-3163 Eria chienii (Vuong, Aver., V.C.Nguyen & T.T.D.Pham) Aver. , comb. nov. ≡ Cylindrolobus chienii Vuong, Aver., V.C.Nguyen & T.T.D.Pham in Nguyen et al. (2020: 272) . Type: — VIETNAM . Dak Lak Province : M'Drak District, Chu Mu Mountain, in tropical evergreen forest at elevation 1000–1200 m on granite rocks, 16 February 2020 , Nguyen Van Canh, Pham Thi Thanh Dat, Truong Ba Vuong, BV 514 ( holotype VNM 00023605!, photos LE LE 01123042 https://en.herbariumle.ru/?t=occ&id=127931). Notes: —The recognition of Cylindrolobus as a separate genus remains highly questionable and problematic, as well as its morphological and geographical limits. In a phylogenetic analysis by Ng et al. (2018) , it is represented by eleven species distributed mostly in eastern Malesia . In total, the dataset comprised about 100 taxa belonging to Eria s.l. , whereas the overall species number in Eria s.l. is estimated as ca. 370 ( Chen et al. 2009 ), and about 80 of them are classified in Cylindrolobus under a narrow genus concept ( Ya et al. 2023 ). It remains therefore important to investigate the phylogeny of Cylindrolobus at a broader species sampling, and in particular to include a comprehensive set of the species from mainland Asia. Until the additional phylogenetic data are obtained and the intergeneric borders within this difficult group are clarified, we prefer to accept the genus Eria in a broad sense (see also Ormerod 2014 ). Here we publish a new name in order to accommodate the recently described Cylindrolobus chienii in the genus Eria .