Abstract
Two new species of Ophiopogon, O. dolichocaulis from Son La Province and O. trigonantherus from Cao Bang Province in northern Vietnam, are described and illustrated. The former is similar to O. chingii, while the latter is similar to O. rupestris and O. dracaenoides. This paper not only details their taxonomic features and relationships to similar species but also provides ecological data on their habitats and phenology.
References
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<p>Averyanov, L.V., Tanaka, N. & Luu, H.T. (2013) New species of <em>Ophiopogon</em> and <em>Peliosanthes</em> (Asparagaceae) from Cambodia and Vietnam. <em>Taiwania</em> 58 (4): 233–241. https://doi.org/10.6165/tai.2013.58.4.233</p>
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<p>Averyanov, L.V., Tanaka, N., Nguyen, K.S. & Nguyen, H.T. (2016) New species of <em>Ophiopogon</em> and <em>Peliosanthes</em> (Asparageceae) from Laos and Vietnam. <em>Taiwania</em> 61 (3): 201–217. https://doi.org/10.6165/tai.2016.61.201</p>
<p>Averyanov, L.V., Tanaka, N., Nguyen, K.S. & Maisak, T.V. (2020) New or insufficiently known species of <em>Ophiopogon</em>, <em>Peliosanthes</em> and <em>Rohdea</em> (Asparagaceae) for the flora of Laos and Vietnam. <em>Taiwania</em> 61 (5): 61–73. https://doi.org/10.6165/tai.2020.65.61</p>
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<p>Tanaka, N. (2000b) Taxonomic notes on <em>Ophiopogon</em> of South Asia V. <em>Journal of Japanese Botany</em> 75 (2): 69‒79.</p>
<p>Tanaka, N. (2001) Taxonomic notes on <em>Ophiopogon</em> of South Asia X. <em>Journal of Japanese Botany</em> 76 (1): 11‒19.</p>
<p>Wang, F.T. & Tang, T. (1937) Notes on Chinese Liliaceae 4. <em>Bulletin of the Fan Memorial Institute of Biology; Botany </em>7: 281–304.</p>
<p>Wang, F.T. & Tang, T. (1978) <em>Flora Reipublicae Popularis Sinicae</em> 15. Science Press, Beijing, pp. 253‒254.</p>
<p>Averyanov, L.V., Tanaka, N. & Luu, H.T. (2013) New species of <em>Ophiopogon</em> and <em>Peliosanthes</em> (Asparagaceae) from Cambodia and Vietnam. <em>Taiwania</em> 58 (4): 233–241. https://doi.org/10.6165/tai.2013.58.4.233</p>
<p>Averyanov, L.V., Tanaka, N., Nguyen, K.S., Nguyen, H.T. & Konstantinov, E.L. (2015) New species of <em>Ophiopogon</em> Ker Gawl., <em>Peliosanthes</em> Andrews and <em>Tupistra</em> Ker Gawl. (Asparagaceae) in the flora of Laos and Vietnam. <em>Adansonia</em> Sér. 3, 37: 25–45. https://doi.org/10.5252/a2015n1a4</p>
<p>Averyanov, L.V., Tanaka, N., Nguyen, K.S. & Nguyen, H.T. (2016) New species of <em>Ophiopogon</em> and <em>Peliosanthes</em> (Asparageceae) from Laos and Vietnam. <em>Taiwania</em> 61 (3): 201–217. https://doi.org/10.6165/tai.2016.61.201</p>
<p>Averyanov, L.V., Tanaka, N., Nguyen, K.S. & Maisak, T.V. (2020) New or insufficiently known species of <em>Ophiopogon</em>, <em>Peliosanthes</em> and <em>Rohdea</em> (Asparagaceae) for the flora of Laos and Vietnam. <em>Taiwania</em> 61 (5): 61–73. https://doi.org/10.6165/tai.2020.65.61</p>
<p>Baker, J.G. (1874) On a new species of <em>Fluggea</em> from the East Himalayas. <em>Journal of Botany, British and Foreign. London</em> 12: 174.</p>
<p>Chen, X.Q. & Tamura, M.N. (2000) <em>Peliosanthes</em> Andrews. <em>In</em>: Wu, Z.Y., Raven, P.H. & Hong, D.Y. (Eds.) <em>Flora of China</em> 24<em>. </em>Science Press, Beijing, Missouri Botanical Garden Press, St. Louis, pp. 261–263.</p>
<p>Dahlgren, R.M.T., Clifford, H.T. & Yeo, P.F. (1985) <em>The families of the monocotyledons</em>. Springer-Verlag, Berlin etc., 520 pp.</p>
<p>Hooker, J.D. (1892) <em>Flora of British India</em> 6. L. Reeve & Co., London, 792 pp.</p>
<p>IUCN (2019) <em>Guidelines for using the IUCN red list categories and criteria</em>, version 14. Prepared by the Standards and Petitions Commitee. Available from: https://www.iucnredlist.org/documents/RedListGuidelines.pdf (accessed 14 September 2021)</p>
<p>Jessop, J.P. (1979) Liliaceae–I. <em>In</em>: Steenis, C.G.G.J. van (ed.) <em>Flora Malesiana, </em>series 1,<em> Spermatophyta. Flowering Plants </em>9 (1). Sijthoff & Noordhoff International Publishers, Alphen aan den Rijin, pp. 189–235.</p>
<p>Ker Gawler, J.B. (1807) <em>Ophiopogon</em>. <em>Curtis’s Botanical Magazine</em> 27: t. 1063.</p>
<p>Loureiro, J. de (1790) <em>Flora Cochinchinensis </em>1. Typis Academicis, Ulyssipone, 353 pp.</p>
<p>Tanaka, N. (2000a) Taxonomic notes on <em>Ophiopogon</em> of South Asia VI. <em>Journal of Japanese Botany</em> 75 (3): 127‒136.</p>
<p>Tanaka, N. (2000b) Taxonomic notes on <em>Ophiopogon</em> of South Asia V. <em>Journal of Japanese Botany</em> 75 (2): 69‒79.</p>
<p>Tanaka, N. (2001) Taxonomic notes on <em>Ophiopogon</em> of South Asia X. <em>Journal of Japanese Botany</em> 76 (1): 11‒19.</p>
<p>Wang, F.T. & Tang, T. (1937) Notes on Chinese Liliaceae 4. <em>Bulletin of the Fan Memorial Institute of Biology; Botany </em>7: 281–304.</p>
<p>Wang, F.T. & Tang, T. (1978) <em>Flora Reipublicae Popularis Sinicae</em> 15. Science Press, Beijing, pp. 253‒254.</p>