Abstract
We report three species of angiosperms found in Kon Chu Rang Nature Reserve representing new records for Vietnam. Kon Chu Rang Nature Reserve is located in the Central Highlands of Vietnam, being a part of a recently established Kon Ha Nung Highland Biosphere Reserve. Euphorbia bokorensis (Euphorbiaceae) appears to be widely distributed throughout the Central Highlands of Vietnam, although it was earlier known from Cambodia and Laos only. Pistillate flowers are for the first time described for E. bokorensis. Glochidion geoffrayi (Phyllanthaceae) was considered endemic to southern Cambodia, and Lysimachia nutantiflora (Primulaceae) was only known from Guangxi, China. For each species, we provide analytical photographs, information on its habitat, phenology, distribution and studied specimens.
References
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Averyanov, L.V., Nong, V.D., Nguyen, H.T., Nuraliev, M.S., Maisak, T.V. & Nguyen, C.A. (2018) New species of <em>Bulbophyllum</em> (Orchidaceae) in the flora of Vietnam. <em>Phytotaxa</em> 369 (1): 1–14. https://doi.org/10.11646/phytotaxa.369.1.1</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Bui, H.Q., Do, V.H., Nguyen, K.S., Le, T.M.L., Tran, D.B., Doan, H.S., Tran, T.P.A. & Möller, M. (2019) <em>Boeica konchurangensis</em> sp. nov. (Gesneriaceae) from Gia Lai plateau, Vietnam. <em>Nordic Journal of Botany</em> 37 (5): e02333. https://doi.org/10.1111/njb.02333</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Bui, H.Q., Tran, T.B., Ha, T.D., Do, V.H., Thanh, H.N.T., Thu, H.B. & Dang, V.S. (2020) A new species of <em>Psydrax</em> (Vanguerieae, Rubiaceae) from the Gia Lai Plateau, southern Vietnam. <em>PhytoKeys</em> 149: 99–107. https://doi.org/10.3897/phytokeys.149.51710</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Chen, F.H. & Hu, C.M. (1979) Taxonomic and phytogeographic studies on Chinese species of <em>Lysimachia</em>. <em>Acta Phytotaxonomica Sinica</em> 17 (4): 21–56. [in Chinese]</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Dang, M.Q., Nguyen, M.H., Hoang, N.S., Le, V.T., Nguyen, T.M.H., Ho, N.Q.C., Truong, B.V. & Dang, V.S. (2022) Two new species of <em>Lasianthus</em> Jack (Rubiaceae) from southern Vietnam. <em>European Journal of Taxonomy</em> 806 (1): 19–31. https://doi.org/10.5852/ejt.2022.806.1697</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Doan, H.S., Tran, T.B., Bui, H.Q., Lu, N.T. & Sy, D.T. (2020) <em>Cyclosorus fukienensis</em> Ching (Thelypteridaceae): a new record for the flora of Vietnam. <em>TNU Journal of Science and Technology</em> 225 (5): 52–54. https://doi.org/10.34238/tnu-jst.2020.05.2515</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Doan, H.S., Do, V.H., Bui, H.Q., Chen, C.W., La, A.D., Trinh, V.H., Choudhary, R.K. & Lee, J. (2022) <em>Amblovenatum immersum</em> (Thelypteridaceae): A new record for the flora of Vietnam. <em>Korean Journal of Plant Taxonomy</em> 52 (2): 108–113. https://doi.org/10.11110/kjpt.2022.52.2.108</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Duong, M.T.T.N., Dang, V.S., Averyanov, L.V., Truong, Q.T., Amsler, R. & Truong, B.V. (2021) Two new species of <em>Bulbophyllum</em> sect. <em>Racemosae</em> (Orchidaceae) from Vietnam. <em>Nordic Journal of Botany</em> 39 (9): e03062. https://doi.org/10.1111/njb.03062</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Gagnepain, F. & Beille, L. (1927) Euphorbiacées. <em>In</em>: Lecomte, H. (Ed.) <em>Flore Générale de L’Indo-Chine</em> 5. Masson et Cie, Paris, pp. 15–673.</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Ha, T.D., Bui, H.Q., Tran, T.B., Do, V.H., Thanh, H.N.T., Thu, H.B., Tagane, S., Oguri, E., Naiki, A. & Dang, V.S. (2020) A new species of <em>Lasianthus</em> (Rubiaceae), <em>L. konchurangensis</em>, from the Central Highlands of Vietnam. <em>Phytotaxa</em> 451 (2): 161–168. https://doi.org/10.11646/phytotaxa.451.2.6</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Hu, C.M. & Kelso, S. (1996) Primulaceae. <em>In</em>: Wu, Z.Y., Raven, P.H. & Hong, D.Y. (Eds.) <em>Flora of China</em>. Vol. 15. Science Press and Missouri Botanical Garden, Beijing and St. Louis, pp. 39–189.</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Kon Chu Rang Nature Reserve (2018) <em>Kon Chu Rang Nature Reserve</em>. Available from: https://konchurang.org/bai-viet/da-dang-sinh-hoc-kon-chu-rang (accessed 11 January 2022).</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Kon Ha Nung Highland Biosphere Reserve (2020) <em>Kon Ha Nung Highland Biosphere Reserve Nomination</em>.</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Kuntze, O. (1891) <em>Revisio generum plantarum vascularium omnium atque cellularium multarum secundum leges nomenclaturae internationales cum enumeratione plantarum exoticarum in itinere mundi collectarum</em>. Part 2. A. Felix, Leipzig, 1011 pp. https://doi.org/10.5962/bhl.title.327</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Lim, C.K., Lee, K.E., Cho, H.S., Saysavanh, V. & Won, H. (2021) New records of flowering plants collected from the Phou Khao Khouay National Biodiversity Conservation Area for the flora of Laos. <em>Korean Journal of Plant Taxonomy</em> 51 (3): 305–318. https://doi.org/10.11110/kjpt.2021.51.3.305</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Linnaeus, C. (1753) <em>Species Plantarum</em> 1. Imprensis Laurentii Salvii, Stockholm, 560 pp. https://doi.org/10.5962/bhl.title.669</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Merrill, E.D. (1936) Otto Kuntze’s new genera and new species of Indo-China plants. <em>Brittonia</em> 2 (3): 189–200. https://doi.org/10.2307/2804861</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Narbona, E., Ortiz, P.L. & Arista, M. (2002) Functional andromonoecy in <em>Euphorbia</em> (Euphorbiaceae). <em>Annals of Botany</em> 89 (5): 571–577. https://doi.org/10.1093/aob/mcf099</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Nguyen, D.H., Dang, M.Q., Le, N.T.K., Quach, V.T.E., Pham, V.N., Le, V.T., Truong, B.V., Naiki, A. & Dang, V.S. (2022) A new species of <em>Lasianthus</em> (Rubiaceae) from Kon Chu Rang Nature Reserve in central highlands of Vietnam. <em>Phytotaxa</em> 541 (3): 291–296. https://doi.org/10.11646/phytotaxa.541.3.9</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Nguyen, K.S., Averyanov, L.V., Tanaka, N., Bui, H.Q., Do, V.H., Tran, D.B. & Qao, Q. (2020) <em>Peliosanthes crassicoronata</em> (Asparagaceae), a new species from southern Vietnam. <em>Phytotaxa</em> 429 (1): 39–47. https://doi.org/10.11646/phytotaxa.429.1.2</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Nuraliev, M.S., Kuznetsov, A.N., Kuznetsova, S.P. & Hu, C.M. (2021)<em> Ardisia patentiradiosa</em> (Primulaceae), a new species from southern Vietnam. <em>Phytotaxa</em> 522 (1): 63–67. https://doi.org/10.11646/phytotaxa.522.1.7</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Poyarkov, N.A., Nguyen, T.V., Popov, E.S., Geissler, P., Pawangkhanant, P., Neang, T., Suwannapoom, C. & Orlov, N.L. (2021) Recent progress in taxonomic studies, biogeographic analysis and revised checklist of amphibians in Indochina. <em>Russian Journal of Herpetology</em> 28 (3A): 1–110. https://doi.org/10.30906/1026-2296-2021-28-3A-1-110</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">PPG I (2016) A community-derived classification for extant lycophytes and ferns. <em>Journal of Systematics and Evolution</em> 54: 563–603. https://doi.org/10.1111/jse.12229</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Seregin, A. (Ed.) (2022) <em>Moscow University Herbarium (MW)</em>. Version 1.232. Lomonosov Moscow State University. Available from: https://www.gbif.org (accessed 12 May 2022). https://doi.org/10.15468/cpnhcc</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Sy, D.T., Tran, T.B., Choudhary, R.K., Tucker, G.C., Hai, D.V., Bui, H.Q., Chinh, V.T. & Lee, J. (2015) <em>Capparis gialaiensis</em> (Capparaceae), a new species from Vietnam. <em>Annales Botanici Fennici</em> 52 (3–4): 219–223. http://dx.doi.org/10.5735/085.052.0314</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Tordoff, A.W., Tran, Q.B., Nguyen, D.T. & Le, M.H. (Eds.) (2004) <em>Sourcebook of existing and proposed protected areas in Vietnam</em>. 2nd ed. Birdlife International in Indochina and Ministry of Agriculture and Rural Development, Hanoi. Available from: https://thiennhienviet.org.vn/sourcebook/source_book/index_EN.html (accessed 11 January 2022).</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Toyama, H., Tagane, S., Chhang, P., Nagamasu, H. & Yahara, T. (2016) Flora of Bokor National Park, Cambodia IV: A new section and species of <em>Euphorbia</em> subgenus <em>Euphorbia</em>. <em>Acta Phytotaxonomica et Geobotanica</em> 67 (2): 83–96. https://doi.org/10.18942/apg.201518</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Tran, T.B., Hoang, X.L., Bui, N.D., Bui, T.H., Sangmi, E., Bui, H.Q., Do, V.H., Nuraliev, M., Kuznetsov, A., Kuznetova, S. & Rodda, M. (2018) <em>Jasminanthes tuyetanhiae</em> (Apocynaceae, Asclepiadoideae), a new species from Vietnam, and <em>J. pilosa</em> new for Vietnam. <em>Annales Botanici Fennici</em> 55 (1–3): 163–169. https://doi.org/10.5735/085.055.0121</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Vislobokov, N.A., Nuraliev, M.S., Kuznetsov, A.N., Kuznetsova, S.P. & Romanov, M.S. (2019) <em>Aspidistra minor</em> (Asparagaceae, Nolinoideae), a tiny new species from Vietnam. <em>Phytotaxa</em> 402 (1): 63–67. https://doi.org/10.11646/phytotaxa.402.1.9</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Yao, G., Song, Z., Wu, Y., Thanh, N.T.K., Li, Y., Shi, S. & Luo, S. (2018) Taxonomic studies of <em>Glochidion</em> (Phyllanthaceae) from the Indo-China Peninsula (II): The identities of <em>G. anamiticum</em> and <em>G. annamense</em>. <em>PhytoKeys</em> 114: 1–9. https://doi.org/10.3897/phytokeys.114.30725</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Ye, X.E., Leong-Škorničková, J. & Xia, N.H. (2018) Taxonomic studies on <em>Amomum</em> (Zingiberaceae) in China I: Introducing the subject and <em>Amomum velutinum</em> sp. nov. previously misidentified as <em>A. repoeense</em> and <em>A. subcapitatum</em>. <em>Nordic Journal of Botany</em> 36 (5): e01661. https://doi.org/10.1111/njb.01661</span></span></span></p>