Abstract
A new species of Smilax, S. bolavenensis (Smilacaceae), is described from the Bolaven Plateau, southern Laos. It is similar to S. elegantissima in its elongated inflorescence with slightly zigzagged rachis longer than 20 cm, but the new species is distinguished by its terete stem and petiole (vs. 4-angled with each corner narrowly winged in S. elegantissima) and 42–54-flowered umbels (vs. 7–12). A description, photographs and preliminary conservation status are also provided for S. bolavenensis.
References
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Diels, L. (1900) Die Flora von Central-China. Botanische Jahrbücher fur Systematik, Pflanzengeschichte und Pflanzengeographie 29 (2): 169?659.
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Kladwong, P. & Chantaranothai, P. (2022) Notes on Smilax bockii and S. seisuiensis (Smilacaceae), two newly recorded species from Laos and Thailand. Thai Forest Bulletin (Botany) 52: 153–160. https://doi.org/10.20531/tfb.2022.50.2.15
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Phonepaseuth, P., Souladeth, P., Souvannakhoummane, K., Vongthavone, T. & Tagane, S. (2021) Two new species of Sonerila Roxb. (Melastomataceae) from Laos. European Journal of Taxonomy 755: 136–148. https://doi.org/10.5852/ejt.2021.755.1403
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Roxburgh, W. (1832) Smilax. In: Roxburgh, W. (Ed.) Flora Indica, vol. 3, Thacker, Serampore, pp. 791–796.
Qi, Z.C., Cameron, K.M., Li, P., Zhao, Y.P., Chen, S.C., Chen, G.C. & Fu, C.X. (2013a) Phylogenetics, character evolution, and distribution patterns of the greenbriers, Smilacaceae (Liliales), a near-cosmopolitan family of monocots. Botanical Journal of the Linnean Society 173: 535–548. https://doi.org/10.1111/boj.12096
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Qi, Z.C., Shen, C., Han, Y.W., Wang, R.H., Liu, R.Z., Naiki, A. & Li, P. (2016) A new species of Smilax (Smilacaceae) from southern island of Kagoshima prefecture, Japan. Phytotaxa 269 (2): 120–130. http://dx.doi.org/10.11646/phytotaxa.269.2.7
Souladeth, P., Tagane, S., Newman, M.F. & Prajaksood, A. (2020) Two new species of Eriocaulon (Eriocaulaceae) from Laos. Kew Bulletin 75: 56. https://doi.org/10.1007/S12225-020-09909-0
Souvannakhoummane, K., Lanorsavanh, S., Tagane, S., Souladeth, P., Phonpaseuth, P., Pongamornkul, W. & Lamxay, V. (2021) Six new species and eight new records of Gesneriaceae from Laos. Gardens’ Bulletin Singapore 73: 427–456. https://doi.org/10.26492/gbs73(2).2021-13
Sun, Z.Y., Wang, Y.H. Zhao, Y.P. & Fu, C.X. (2015) Molecular, chromosomal and morphological characters reveal a new diploid species in the Smilax china complex (Smilacaceae). Phytotaxa 212 (3): 199–212. https://doi.org/10.11646/phytotaxa.212.3.2
Tagane, S., Souladeth, P., Kongxaysavath, P., Rueangurea, S., Suddee, S., Suyama, Y., Suzuki, E. & Yahara T. (2020) Two new species and 18 new recrods for the flora of Laos. Thai Forest Bulletin (Botany) 49: 111–126. https://doi.org/10.20531/tfb.2021.49.1.14
Vongthavone, T., Tagane, S., Phonepaseuth, P., Souvannakhoummane, K. & Souladeth, P. (2021) Twelve new records of pteridophytes from Bolaven Plateau, sothern Laos. Thai Forest Bulletin (Botany) 49: 182–190. https://doi.org/10.20531/tfb.2021.49.2.05
Yamazaki, T., Souladeth, P. & Tagane S. (2021) Strobilanthes bolavenensis, a new species of Acanthaceae from Bolaven Plateau, southern Laos. Phytotaxa 513 (2): 152–158. https://doi.org/10.11646/phytotaxa.513.2.6
Cameron, K.M. & Fu, C.X. (2006) A nuclear rDNA phylogeny of Smilax (Smilacaceae). Aliso 22: 598–605. https://dx.doi.org/10.5642/aliso.20062201.47
Chen, X. & Koyama, T. (2000) Smilacaceae. In: Wu, Z.Y., Raven, P.H. & Hong D.Y. (Eds.) Flora of China, vol. 24. Missouri Botanical Garden Press, St. Louis and Science Press, Beijing, pp. 96–115. Available from: http://www.efloras.org/flora_page.aspx?flora_id=2 (accessed 1 March 2022)
De Candolle, A. & De Candolle, C. (1878) Monographiae phanerogamarum 6: Smilaceae, Restiaceae, Meliaceae. Masson, Paris, 783 pp.
Diels, L. (1900) Die Flora von Central-China. Botanische Jahrbücher fur Systematik, Pflanzengeschichte und Pflanzengeographie 29 (2): 169?659.
Feng, J.Y., Jin, X.J., Zhang, S.L., Yang, J.W., Fei, S.P., Huang, Y.S., Liu, Y., Qi, Z.C. & Li, P. (2022) Smilax weniae, a new species of Smilacaceae from limestone areas bordering Guizhou and Guangxi, China. Plants 11: 1032. https://doi.org/10.3390/plants11081032
Gagnepain, F. (1934) Liliacées. In: Lecomte, H. (Ed.) Flore générale de l’Indo-Chine, vol. 6. Masson, Paris, pp. 753?815.
Gagnepain, F. (1934) Deux Liliacées nouvelles. Bulletin de la Société Botanique de France 81: 619. https://doi.org/10.1080/00378941.1934.10834005
Heckroth, H.P., Moong, J., Janka, H.I., Fiala, B., Chung, A.Y.C. & Maschwitz, U. (2004) Smilax borneensis (Smilacaceae), an unspecific climbing ant-plant from Borneo and myrmeophytic traits in other Asiatic Smilax species. Sandakania 14: 33–50.
Hô, P. H. (2000) Cay Co Viet Nam: an illustrated flora of Vietnam, vol. 3. The author, Montreal, 1020 pp.
Hooker, J.D. (1892) Smilax. In: Hooker, J.D. (Ed.) The flora of British India, vol 6, Reeve, London, pp. 302–314.
Jin, X.J., Chen, Y., Lee J., Qi, Z.C., Liu, L.X., Li, Q. & Fu, C.X. (2016) A new species of Smilax (Smilacaceae) from Yunnan, China. Phytotaxa 275 (2): 159–167. https://doi.org/10.11646/phytotaxa.275.2.7
Kladwong, P. & Chantaranothai, P. (2020) Taxonomic notes on genus Smilax L. (Smilacaceae) from the mainland Southeast Asia. Tropical Natural History 20: 244–255.
Kladwong, P. & Chantaranothai, P. (2022) Notes on Smilax bockii and S. seisuiensis (Smilacaceae), two newly recorded species from Laos and Thailand. Thai Forest Bulletin (Botany) 52: 153–160. https://doi.org/10.20531/tfb.2022.50.2.15
Kladwong, P. Chantaranothai, P. & Simpson, D.A. (2018) Two new names and five lectotypfied taxa for the genus Smilax (Smilacaceae) and the transfer of Smilax petiolatumidus to the genus Dioscorea (Dioscoreaceae). Thai Forest Bulletin (Botany) 46: 44–57. https://doi.org/10.20531/tfb.2018.46.1.07
Koyama, T. (1975) Smilacaceae. In: Smitinand, T. & Larsen, K. (Eds.) Flora of Thailand, vol. 2(3). Applied Scientific Research Corporation of Thailand, Bangkok, pp. 211–250.
Koyama, T. (1983) Smilacaceae. In: Leroy, Jean-F. (Ed.) Flore du Cambodge, du Laos et du Viêt-Nam, vol. 20. Muséum national d’histoire naturelle, Paris, pp. 69?124.
Kunth, K.S. (1850) Enumeratio plantarum. Cottae, Stuttgart, 908 pp.
Li, P., Qi, Z.C., Chen, S.C., Cameron, K.M. & Fu, C. (2011) Smilax ligneoriparia sp. nov.: a link between herbaceous and woody Smilax (Smilacaceae) based on morphology, karyotype and molecular phylogenetic data. Taxon 60: 1104–1112. https://doi.org/10.1002/tax.604013
Linnaeus, C. (1753) Species plantarum. Salvius, Stockholm, 1200 pp.
Newman, M.F., Pullan, M., Ketphanh, S., Svengsuksa, B., Thomas, P., Sengdala, K., Lamxay, V. & Armstrong, K. (2017 onwards) A checklist of the vascular plants of Lao PDR. Available from: https://padme.rbge.org.uk/laos/ (accessed 21 February 2022)
Noyori, W., Komada, N., Souladeth, P. & Tagane, S. (2022) Camchaya bolavenensis (Asteraceae: Vernonieae), a new species from Bolaven Plateau, southern Laos. Phytotaxa 536 (1): 1–6. https://doi.org/10.11646/phytotaxa.536.1.1
Phonepaseuth, P., Souladeth, P., Souvannakhoummane, K., Vongthavone, T. & Tagane, S. (2021) Two new species of Sonerila Roxb. (Melastomataceae) from Laos. European Journal of Taxonomy 755: 136–148. https://doi.org/10.5852/ejt.2021.755.1403
POWO (2022) Plants of the World online. Facilitated by the Royal Botanic Gardens, Kew. Available from: http://www.plantsoftheworldonline.org/ (accessed 1 March 2022)
Profile, E. (2012) Indo-Burma biodiversity hotspot. Update Critical Ecosystem Partnership-Fund, Washington, 360 pp.
Roxburgh, W. (1832) Smilax. In: Roxburgh, W. (Ed.) Flora Indica, vol. 3, Thacker, Serampore, pp. 791–796.
Qi, Z.C., Cameron, K.M., Li, P., Zhao, Y.P., Chen, S.C., Chen, G.C. & Fu, C.X. (2013a) Phylogenetics, character evolution, and distribution patterns of the greenbriers, Smilacaceae (Liliales), a near-cosmopolitan family of monocots. Botanical Journal of the Linnean Society 173: 535–548. https://doi.org/10.1111/boj.12096
Qi, Z.C., Li, P. & Fu, C.X. (2013b) New combinations and a new name in Smilax for species of Heterosmilax in Eastern and Southeast Asian Smilacaceae (Liliales). Phytotaxa 117 (2): 58–60. https://dx.doi.org/10.11646/phytotaxa.117.2.4
Qi, Z.C., Shen, C., Han, Y.W., Wang, R.H., Liu, R.Z., Naiki, A. & Li, P. (2016) A new species of Smilax (Smilacaceae) from southern island of Kagoshima prefecture, Japan. Phytotaxa 269 (2): 120–130. http://dx.doi.org/10.11646/phytotaxa.269.2.7
Souladeth, P., Tagane, S., Newman, M.F. & Prajaksood, A. (2020) Two new species of Eriocaulon (Eriocaulaceae) from Laos. Kew Bulletin 75: 56. https://doi.org/10.1007/S12225-020-09909-0
Souvannakhoummane, K., Lanorsavanh, S., Tagane, S., Souladeth, P., Phonpaseuth, P., Pongamornkul, W. & Lamxay, V. (2021) Six new species and eight new records of Gesneriaceae from Laos. Gardens’ Bulletin Singapore 73: 427–456. https://doi.org/10.26492/gbs73(2).2021-13
Sun, Z.Y., Wang, Y.H. Zhao, Y.P. & Fu, C.X. (2015) Molecular, chromosomal and morphological characters reveal a new diploid species in the Smilax china complex (Smilacaceae). Phytotaxa 212 (3): 199–212. https://doi.org/10.11646/phytotaxa.212.3.2
Tagane, S., Souladeth, P., Kongxaysavath, P., Rueangurea, S., Suddee, S., Suyama, Y., Suzuki, E. & Yahara T. (2020) Two new species and 18 new recrods for the flora of Laos. Thai Forest Bulletin (Botany) 49: 111–126. https://doi.org/10.20531/tfb.2021.49.1.14
Vongthavone, T., Tagane, S., Phonepaseuth, P., Souvannakhoummane, K. & Souladeth, P. (2021) Twelve new records of pteridophytes from Bolaven Plateau, sothern Laos. Thai Forest Bulletin (Botany) 49: 182–190. https://doi.org/10.20531/tfb.2021.49.2.05
Yamazaki, T., Souladeth, P. & Tagane S. (2021) Strobilanthes bolavenensis, a new species of Acanthaceae from Bolaven Plateau, southern Laos. Phytotaxa 513 (2): 152–158. https://doi.org/10.11646/phytotaxa.513.2.6