Abstract
Ophiopogon sclerophyllus is described and illustrated as a new species from northwestern Guangxi, China. The new species can be distinguished from other Ophiopogon species by its roots with fusiform or oblong tubercles near middle or tip, thickly leathery leaf blade, widely opening flowers with recurved perianth segments. The relationships among O. sclerophyllus, O. pseudotonkinensis and O. petraeus are shortly discussed.
References
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Averyanov, L.V., Tanaka, N. & Luu, H.T. (2013) New species of Ophiopogon and Peliosanthes (Asparagaceae) from Cambodia and Vietnam. Taiwania 58 (4): 233–241. https://doi.org/10.6165/tai.2013.58.4.233</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Averyanov, L.V., Tanaka, N., Nguyen, K.S., Nguyen, H.T. & Konstantinov, E.L. (2015a) New species of Ophiopogon Ker Gawl., Peliosanthes Andrews and Tupistra Ker Gawl. (Asparagaceae) in the flora of Laos and Vietnam. Adansonia Sér. 3, 37: 25–45. https://doi.org/10.5252/a2015n1a4</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Averyanov, L.V., ?anaka, N., Nguyen, K.S. & Konstantinov, E.L. (2015b) A new species and two new records of Ophiopogon and Peliosanthes (Asparagaceae) in the flora of Laos. Taiwania 60 (2): 86?90. https://doi.org/10.6165/tai.2015.60.86</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Averyanov, L.V., Tanaka, N., Nguyen, K.S. & Nguyen, H.T. (2016) New species of Ophiopogon and Peliosanthes (Asparageceae) from Laos and Vietnam. Taiwania 61 (3): 201–217. https://doi.org/10.6165/tai.2016.61.201</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Averyanov, L.V., Tanaka, N., Nguyen, K.S. & Maisak, T.V. (2020) New or insufficiently known species of Ophiopogon, Peliosanthes and Rohdea (Asparagaceae) for the flora of Laos and Vietnam. Taiwania 61 (5): 61–73. https://doi.org/10.6165/tai.2020.65.61</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Averyanov, L.V., Tanaka, N., Nguyen, K.S., Maisak, T.V., Nuraliev, M.S., Vislobokov, N.A., Romanov, M.S. & Son, H.T. (2021) New and noteworthy species of Ophiopogon and Peliosanthes (Asparagaceae) from Laos, Vietnam and Thailand. Nordic Journal of Botany 39 (6): e03130. https://doi.org/10.1111/njb.03130</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Chen, X.Q. & Tamura, M.N. (2000) Ophiopogon. In: Wu, Z.Y., Raven, P.H. & Hong, D.Y. (eds.) Flora of China. Vol. 24. Science Press, Beijing, and Missouri Botanical Garden Press, St. Louis, pp. 252–261.</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Dai, L.K., Chen, S.C. (1978) Ophiopogon. In: Wang, F.T. & Tang, T. (eds.) Flora Reipublicae Popularis Sinicae 15 (in Chinese). Science Press, Beijing: 130–164.</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Fang, D. (1998) Three new species of Ophiopogon (Liliaceae) from Guangxi, China. Journal of Tropical and Subtropical Botany 6 (2): 97–100.</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Jiang, R.H., Huang, Y.S., Wu, L. & Xu, W.B. (2013) Ophiopogon yangshuoensis (Asparagaceae), a new species from Guangxi, China. Annales Botanici Fennici 50: 324–326. https://doi.org/10.5735/086.050.0506</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">IUCN. (2019) Guidelines for using the IUCN red list categories and criteria, version 14. Prepared by the Standards and Petitions Commitee. Available from: https://www.iucnredlist.org/documents/RedListGuidelines. pdf (accessed 14 September 2021)</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Ker Gawler, J.B. (1807) Ophiopogon. Curtis’s Botanical Magazine 27: t. 1063.</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Lin Q.W., Le, C.T., Yu, Z.Y. Sun, G.F. & Liu, B. (2021) Ophiopogon elatior, a new species of Asparagaceae from Yunnan, China. Phytotaxa 525 (1): 46–50. https://doi.org/10.11646/phytotaxa.525.1.5</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Liu, W.Q., Jin, J.H. & Liao, W.B. (2007) Ophiopogon acerobracteatus (Convallariaceae), a new species from southern China. Annales Botanici Fennici 44: 492–494.</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Rodriguez, L. (1929) Bulletin de la Société Botanique de France 75: 998.</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Tamura, M.N. & Xu, J.M. (2007) A new species of the genus Ophiopogon (Asparagaceae) from Guangxi, China. Acta Phytotaxonomicaet Geobotanica 58: 39–41.</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Tanaka, N. (1999a)Taxonomic notes on Ophiopogon of south Asia <span style="font-family: KozGoPro-Regular, serif;">?</span>. The Journal of Japanese Botany 74: 25?33.</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Tanaka, N. (1999b) Taxonomic notes on Ophiopogon of south Asia III. The Journal of Japanese Botany 74: 261?269.</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Tanaka, N. (2000a) Taxonomic notes on Ophiopogon of south Asia V. The Journal of Japanese Botany 75: 69?79.</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Tanaka, N. (2000b) Taxonomic notes on Ophiopogon of south Asia VI. The Journal of Japanese Botany 75: 127?136.</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Wang, Y. (1987) New species of Liliaceae from Guangxi. Acta Phytotaxonomica Sinica 25 (5): 398?400.</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Yang, Y.P. (1989) The classification distribution and phylogeny of the genus Ophiopogon from Yunnan. Masters Dissertation. Kunming: Kunming Institute of Botany, Chinese Academy of Sciences.</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Averyanov, L.V., Tanaka, N., Nguyen, K.S., Nguyen, H.T. & Konstantinov, E.L. (2015a) New species of Ophiopogon Ker Gawl., Peliosanthes Andrews and Tupistra Ker Gawl. (Asparagaceae) in the flora of Laos and Vietnam. Adansonia Sér. 3, 37: 25–45. https://doi.org/10.5252/a2015n1a4</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Averyanov, L.V., ?anaka, N., Nguyen, K.S. & Konstantinov, E.L. (2015b) A new species and two new records of Ophiopogon and Peliosanthes (Asparagaceae) in the flora of Laos. Taiwania 60 (2): 86?90. https://doi.org/10.6165/tai.2015.60.86</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Averyanov, L.V., Tanaka, N., Nguyen, K.S. & Nguyen, H.T. (2016) New species of Ophiopogon and Peliosanthes (Asparageceae) from Laos and Vietnam. Taiwania 61 (3): 201–217. https://doi.org/10.6165/tai.2016.61.201</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Averyanov, L.V., Tanaka, N., Nguyen, K.S. & Maisak, T.V. (2020) New or insufficiently known species of Ophiopogon, Peliosanthes and Rohdea (Asparagaceae) for the flora of Laos and Vietnam. Taiwania 61 (5): 61–73. https://doi.org/10.6165/tai.2020.65.61</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Averyanov, L.V., Tanaka, N., Nguyen, K.S., Maisak, T.V., Nuraliev, M.S., Vislobokov, N.A., Romanov, M.S. & Son, H.T. (2021) New and noteworthy species of Ophiopogon and Peliosanthes (Asparagaceae) from Laos, Vietnam and Thailand. Nordic Journal of Botany 39 (6): e03130. https://doi.org/10.1111/njb.03130</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Chen, X.Q. & Tamura, M.N. (2000) Ophiopogon. In: Wu, Z.Y., Raven, P.H. & Hong, D.Y. (eds.) Flora of China. Vol. 24. Science Press, Beijing, and Missouri Botanical Garden Press, St. Louis, pp. 252–261.</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Dai, L.K., Chen, S.C. (1978) Ophiopogon. In: Wang, F.T. & Tang, T. (eds.) Flora Reipublicae Popularis Sinicae 15 (in Chinese). Science Press, Beijing: 130–164.</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Fang, D. (1998) Three new species of Ophiopogon (Liliaceae) from Guangxi, China. Journal of Tropical and Subtropical Botany 6 (2): 97–100.</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Jiang, R.H., Huang, Y.S., Wu, L. & Xu, W.B. (2013) Ophiopogon yangshuoensis (Asparagaceae), a new species from Guangxi, China. Annales Botanici Fennici 50: 324–326. https://doi.org/10.5735/086.050.0506</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">IUCN. (2019) Guidelines for using the IUCN red list categories and criteria, version 14. Prepared by the Standards and Petitions Commitee. Available from: https://www.iucnredlist.org/documents/RedListGuidelines. pdf (accessed 14 September 2021)</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Ker Gawler, J.B. (1807) Ophiopogon. Curtis’s Botanical Magazine 27: t. 1063.</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Lin Q.W., Le, C.T., Yu, Z.Y. Sun, G.F. & Liu, B. (2021) Ophiopogon elatior, a new species of Asparagaceae from Yunnan, China. Phytotaxa 525 (1): 46–50. https://doi.org/10.11646/phytotaxa.525.1.5</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Liu, W.Q., Jin, J.H. & Liao, W.B. (2007) Ophiopogon acerobracteatus (Convallariaceae), a new species from southern China. Annales Botanici Fennici 44: 492–494.</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Rodriguez, L. (1929) Bulletin de la Société Botanique de France 75: 998.</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Tamura, M.N. & Xu, J.M. (2007) A new species of the genus Ophiopogon (Asparagaceae) from Guangxi, China. Acta Phytotaxonomicaet Geobotanica 58: 39–41.</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Tanaka, N. (1999a)Taxonomic notes on Ophiopogon of south Asia <span style="font-family: KozGoPro-Regular, serif;">?</span>. The Journal of Japanese Botany 74: 25?33.</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Tanaka, N. (1999b) Taxonomic notes on Ophiopogon of south Asia III. The Journal of Japanese Botany 74: 261?269.</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Tanaka, N. (2000a) Taxonomic notes on Ophiopogon of south Asia V. The Journal of Japanese Botany 75: 69?79.</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Tanaka, N. (2000b) Taxonomic notes on Ophiopogon of south Asia VI. The Journal of Japanese Botany 75: 127?136.</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Wang, Y. (1987) New species of Liliaceae from Guangxi. Acta Phytotaxonomica Sinica 25 (5): 398?400.</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Yang, Y.P. (1989) The classification distribution and phylogeny of the genus Ophiopogon from Yunnan. Masters Dissertation. Kunming: Kunming Institute of Botany, Chinese Academy of Sciences.</span></span></span>