Abstract
Lasianthus kbangensis V.S.Dang, Vuong & Naiki, a new species belonging to Lasianthus sect. Nudiflorae of Rubiaceae from the Central Highlands of Vietnam, is described and illustrated. This new species is similar to L. oblongilobus H. Zhu, but differs in having larger leaves, longer petioles, smaller calyx (calyx lobes) and corolla, and the color of ripen fruits. A table comparing the new species to closely related species is provided.
References
Blume, C.L. (1823) Catalogus van eenige der merkwaardigste zoo in- als uitheemse gewassen, te vinden in ‘s lands plantentuin te Buitenzorg. Landsdrukkerij, Batavia, 112 pp.
Bui, H.Q., Do, V.H., Nguyen, S.K., Le, T.M.L., Tran, D.B., Doan, H.S., Tran, T.P.A. & Moller, M. (2019) Boeica konchurangensis sp. nov. (Gesneriaceae) from Gia Lai plateau, Vietnam. Nordic Journal of Botany 37 (5): 1–8. https://onlinelibrary.wiley.com/doi/abs/10.1111/njb.02333
Bui, H.Q., Tran, T.B., Ha, T.D., Do, V.H., Nguyen, T.T.H., Bui, T.H. & Dang, V.S. (2020) A new species of Psydrax (Vanguerieae, Rubiaceae) from the Gia Lai Plateau, southern Vietnam. PhytoKeys 149: 99–107. https://doi.org/10.3897/phytokeys.149.51710
Dang, V.S. & Naiki, A. (2019) Two new species of Lasianthus (Rubiaceae) from Hoang Lien National Park, northern Vietnam. Phytotaxa 423 (1): 33–40. https://doi.org/10.11646/phytotaxa.423.1.4
Dang, V.S. & Naiki, A. (2020) Two new species of Lasianthus (Rubiaceae) from northern Vietnam. Annales Botanici Fennici 57: 49–54. https://doi.org/10.5735/085.057.0106
Do, V.H., Duong, T.H., Lin, Z., Deng, Y., Choudhary, R.K. & Lee, J. (2021) Rungia gialaiensis (Acanthaceae), a new species from the Central Highlands of Vietnam. Phytotaxa 500 (4): 294–300. https://doi.org/10.11646/phytotaxa.500.4.5
Do, V.H., Min, D.Z., Nguyen, S.K., Tan, Y.H., Thoa, P.T.K., Bramley, G.L.C., Rogier, P.J.K. & Li, B. (2018) Premna vietnamensis (Lamiaceae, Premnoideae), a distinct new species from the Central Highlands of Vietnam. PLoS ONE 13 (5): e0195811. https://doi.org/10.1371/journal.pone.0195811
Gangopadhyay, M. & Chakrabarty, T. (1992) A note on the status of Litosanthes Bl. (Rubiaceae). Journal of Economic and Taxonomic Botany 16: 337–338.
Ha, T.D., Bui, H.Q., Tran, T.B., Do, V.H., Nguyen, T.T.H., Bui, T.H., Tagane, S., Oguri, E., Naiki, A. & Dang, V.S. (2020) A new species of Lasianthus (Rubiaceae), L. konchurang, from the Central Highlands of Vietnam. Phytotaxa 451 (2): 161–168. https://doi.org/10.11646/phytotaxa.451.2.6
Hance, H.F. (1885) Spicilegia florae sinensis: diagnoses of new and habitats of rare or hitherto unrecorded, Chinese plants. Journal of Botany 23: 321–330.
Hebert, P.D.N. & Gregory, T.R. (2005) The promise of DNA barcoding for taxonomy. Systematic Biology 54: 852–859. [https://www.jstor.org/stable/20061289]
IUCN (2019) Guidelines for Using the IUCN Red List Categories and Criteria. Version 14. Prepared by the Standards and Petitions Subcommittee. [http://cmsdocs.s3.amazonaws.com/RedListGuidelines.pdf]
Jannerup, P.L. (2006) A revision of the genus Lasianthus (Rubiaceae) in Africa, excluding Madagascar. Nordic Journal of Botany 23: 641–702. [https://onlinelibrary.wiley.com/doi/10.1111/j.1756-1051.2003.tb00445.x]
Jack, W. (1823) Account of the Lansium and some other genera of Malayan plants. Transactions of the Linnean Society of London 14: 125–126.
King, G. & Gamble, J.S. (1904) Lasianthus Jack. Journal of the Asiatic Society of Bengal 73: 106–133.
Korthals, P.W. (1851) Mephitidia sect. Dysosmia Korthals. Nederlandsch Kruidkundig Archief. Verslangen en Mededelingen der Nederlandsche Botanische Vereeniging 2 (2): 217–224.
Lo, H.S. (1993) Materials for Chinese Rubiaceae (III). Botanical Journal of South China I: 1–17.
Merrill, E.D. (1922) Noteworthy Philippine Plants XVII. Philippine Journal of Science 20: 432.
Merrill, E.D. (1952) William Jack’s genera and species of Malaysian plants. Journal of the Arnold Arboretum 33 (3): 199–230.
Miquel, F.A.W. (1856-1858) Flora van Nederlandsch Indië. Vol. 2. C. G. van der Post, Amsterdam, ix + 1103 pp.
Naiki, A., Tagane, S., Chhang, P., Toyama, H., Zhu, H., Dang, V.S. & Yahara, T. (2015) Flora of Bokor National Park, Cambodia II: four new species and nine new records of Lasianthus (Rubiaceae) from Cambodia. Acta Phytotaxonomica et Geobotanica 66 (3): 153–179. https://doi.org/10.18942/apg.KJ00010115702
Nguyen, V.D., Dinh, Q.D., Ha, M.T., Bui, H.Q. & Boy, P.C. (2019) A new species of Anadendrum (Araceae - Anadendreae) from Vietnam. Blumea 64: 190–193. [https://www.ingentaconnect.com/content/nhn/blumea/2019/00000064/00000002/art00012;jsessionid=7rk1hd1hed1su.x-ic-live-03]
Pham, H.H. (2000) Cây c? Vi?t Nam: An Illustrated Flora of Vietnam, vol. 3. Youth Publication, Ho Chi Minh City, pp. 202–209.
Pitard, J. (1924) Rubiacées In: Lecomte, P.H., Humbert, H. & Gagnepain, F. (Eds.) Flore générale de l’Indo-Chine 3: 395. Masson, Paris, pp. 20–442.
Robbrecht, E. (1988) Tropical woody Rubiaceae. Opera Botanica Belgica 1: 132.
Roxburgh, W. (1824) Flora Indica; or Descriptions of Indian plants Vol. 2. Mission Press, Serampore, v + 588 pp.
Sy, D.T., Do, V.H., Choudhary, R.K., Tran, T.B., Chu, H.M., Nguyen, H.Q., Nguyen, T.T.N., Tucker, G.C. & Lee, J. (2020) Capparis kbangensis (Capparaceae), a new species from central Vietnam. PhytoKeys 151: 83–91. [https://phytokeys.pensoft.net/article/50477/]
Sy, D.T., Tran, T.B., Choudhary, R.K., Tucker, G.C., Do, V.H., Bui, H.Q., Vu, T.C. & Lee, J. (2015) Capparis gialaiensis (Capparaceae), a new species from Vietnam. Annales Botanici Fennici 52: 219–223. [https://www.jstor.org/stable/43745839]
Zhu, H. (2001) A taxonomic revision of the genus Lasianthus Jack (Rubiaceae) from Thailand. Acta Phytotaxonomica Sinica 39: 116–150.
Zhu, H. (2002) A revision of the genus Lasianthus (Rubiaceae) from China. Systematics and Geography of Plant 72: 63–1109. [https://www.jstor.org/stable/3668764]
Zhu, H. & Roos, M.C. (2002) Three new species of the genus Lasianthus (Rubiaceae) from Vietnam. Blumea 47: 395–401.
Zhu, H. & Taylor, C.M. (2011) Lasianthus. In: Wu, Z.Y., Raven, P.H. & Hong, D.Y. (Eds.) Flora of China, vol. 19. Science Press, Beijing, and Missouri Botanical Garden Press, St. Louis, pp. 185–198.
Zhu, H., Roos, M.C. & Ridsdale, C.E. (2012) A taxonomic revision of the Malesian species of Lasianthus (Rubiaceae). Blumea 57: 1–102. https://doi.org/10.3767/000651912X652012
Zhu, H. (2015) Paralasianthus (Rubiaceae), a new genus from Southeast Asia. Phytotaxa 202 (4): 273–278. http://dx.doi.org/10.11646/phytotaxa.202.4.5
Bui, H.Q., Do, V.H., Nguyen, S.K., Le, T.M.L., Tran, D.B., Doan, H.S., Tran, T.P.A. & Moller, M. (2019) Boeica konchurangensis sp. nov. (Gesneriaceae) from Gia Lai plateau, Vietnam. Nordic Journal of Botany 37 (5): 1–8. https://onlinelibrary.wiley.com/doi/abs/10.1111/njb.02333
Bui, H.Q., Tran, T.B., Ha, T.D., Do, V.H., Nguyen, T.T.H., Bui, T.H. & Dang, V.S. (2020) A new species of Psydrax (Vanguerieae, Rubiaceae) from the Gia Lai Plateau, southern Vietnam. PhytoKeys 149: 99–107. https://doi.org/10.3897/phytokeys.149.51710
Dang, V.S. & Naiki, A. (2019) Two new species of Lasianthus (Rubiaceae) from Hoang Lien National Park, northern Vietnam. Phytotaxa 423 (1): 33–40. https://doi.org/10.11646/phytotaxa.423.1.4
Dang, V.S. & Naiki, A. (2020) Two new species of Lasianthus (Rubiaceae) from northern Vietnam. Annales Botanici Fennici 57: 49–54. https://doi.org/10.5735/085.057.0106
Do, V.H., Duong, T.H., Lin, Z., Deng, Y., Choudhary, R.K. & Lee, J. (2021) Rungia gialaiensis (Acanthaceae), a new species from the Central Highlands of Vietnam. Phytotaxa 500 (4): 294–300. https://doi.org/10.11646/phytotaxa.500.4.5
Do, V.H., Min, D.Z., Nguyen, S.K., Tan, Y.H., Thoa, P.T.K., Bramley, G.L.C., Rogier, P.J.K. & Li, B. (2018) Premna vietnamensis (Lamiaceae, Premnoideae), a distinct new species from the Central Highlands of Vietnam. PLoS ONE 13 (5): e0195811. https://doi.org/10.1371/journal.pone.0195811
Gangopadhyay, M. & Chakrabarty, T. (1992) A note on the status of Litosanthes Bl. (Rubiaceae). Journal of Economic and Taxonomic Botany 16: 337–338.
Ha, T.D., Bui, H.Q., Tran, T.B., Do, V.H., Nguyen, T.T.H., Bui, T.H., Tagane, S., Oguri, E., Naiki, A. & Dang, V.S. (2020) A new species of Lasianthus (Rubiaceae), L. konchurang, from the Central Highlands of Vietnam. Phytotaxa 451 (2): 161–168. https://doi.org/10.11646/phytotaxa.451.2.6
Hance, H.F. (1885) Spicilegia florae sinensis: diagnoses of new and habitats of rare or hitherto unrecorded, Chinese plants. Journal of Botany 23: 321–330.
Hebert, P.D.N. & Gregory, T.R. (2005) The promise of DNA barcoding for taxonomy. Systematic Biology 54: 852–859. [https://www.jstor.org/stable/20061289]
IUCN (2019) Guidelines for Using the IUCN Red List Categories and Criteria. Version 14. Prepared by the Standards and Petitions Subcommittee. [http://cmsdocs.s3.amazonaws.com/RedListGuidelines.pdf]
Jannerup, P.L. (2006) A revision of the genus Lasianthus (Rubiaceae) in Africa, excluding Madagascar. Nordic Journal of Botany 23: 641–702. [https://onlinelibrary.wiley.com/doi/10.1111/j.1756-1051.2003.tb00445.x]
Jack, W. (1823) Account of the Lansium and some other genera of Malayan plants. Transactions of the Linnean Society of London 14: 125–126.
King, G. & Gamble, J.S. (1904) Lasianthus Jack. Journal of the Asiatic Society of Bengal 73: 106–133.
Korthals, P.W. (1851) Mephitidia sect. Dysosmia Korthals. Nederlandsch Kruidkundig Archief. Verslangen en Mededelingen der Nederlandsche Botanische Vereeniging 2 (2): 217–224.
Lo, H.S. (1993) Materials for Chinese Rubiaceae (III). Botanical Journal of South China I: 1–17.
Merrill, E.D. (1922) Noteworthy Philippine Plants XVII. Philippine Journal of Science 20: 432.
Merrill, E.D. (1952) William Jack’s genera and species of Malaysian plants. Journal of the Arnold Arboretum 33 (3): 199–230.
Miquel, F.A.W. (1856-1858) Flora van Nederlandsch Indië. Vol. 2. C. G. van der Post, Amsterdam, ix + 1103 pp.
Naiki, A., Tagane, S., Chhang, P., Toyama, H., Zhu, H., Dang, V.S. & Yahara, T. (2015) Flora of Bokor National Park, Cambodia II: four new species and nine new records of Lasianthus (Rubiaceae) from Cambodia. Acta Phytotaxonomica et Geobotanica 66 (3): 153–179. https://doi.org/10.18942/apg.KJ00010115702
Nguyen, V.D., Dinh, Q.D., Ha, M.T., Bui, H.Q. & Boy, P.C. (2019) A new species of Anadendrum (Araceae - Anadendreae) from Vietnam. Blumea 64: 190–193. [https://www.ingentaconnect.com/content/nhn/blumea/2019/00000064/00000002/art00012;jsessionid=7rk1hd1hed1su.x-ic-live-03]
Pham, H.H. (2000) Cây c? Vi?t Nam: An Illustrated Flora of Vietnam, vol. 3. Youth Publication, Ho Chi Minh City, pp. 202–209.
Pitard, J. (1924) Rubiacées In: Lecomte, P.H., Humbert, H. & Gagnepain, F. (Eds.) Flore générale de l’Indo-Chine 3: 395. Masson, Paris, pp. 20–442.
Robbrecht, E. (1988) Tropical woody Rubiaceae. Opera Botanica Belgica 1: 132.
Roxburgh, W. (1824) Flora Indica; or Descriptions of Indian plants Vol. 2. Mission Press, Serampore, v + 588 pp.
Sy, D.T., Do, V.H., Choudhary, R.K., Tran, T.B., Chu, H.M., Nguyen, H.Q., Nguyen, T.T.N., Tucker, G.C. & Lee, J. (2020) Capparis kbangensis (Capparaceae), a new species from central Vietnam. PhytoKeys 151: 83–91. [https://phytokeys.pensoft.net/article/50477/]
Sy, D.T., Tran, T.B., Choudhary, R.K., Tucker, G.C., Do, V.H., Bui, H.Q., Vu, T.C. & Lee, J. (2015) Capparis gialaiensis (Capparaceae), a new species from Vietnam. Annales Botanici Fennici 52: 219–223. [https://www.jstor.org/stable/43745839]
Zhu, H. (2001) A taxonomic revision of the genus Lasianthus Jack (Rubiaceae) from Thailand. Acta Phytotaxonomica Sinica 39: 116–150.
Zhu, H. (2002) A revision of the genus Lasianthus (Rubiaceae) from China. Systematics and Geography of Plant 72: 63–1109. [https://www.jstor.org/stable/3668764]
Zhu, H. & Roos, M.C. (2002) Three new species of the genus Lasianthus (Rubiaceae) from Vietnam. Blumea 47: 395–401.
Zhu, H. & Taylor, C.M. (2011) Lasianthus. In: Wu, Z.Y., Raven, P.H. & Hong, D.Y. (Eds.) Flora of China, vol. 19. Science Press, Beijing, and Missouri Botanical Garden Press, St. Louis, pp. 185–198.
Zhu, H., Roos, M.C. & Ridsdale, C.E. (2012) A taxonomic revision of the Malesian species of Lasianthus (Rubiaceae). Blumea 57: 1–102. https://doi.org/10.3767/000651912X652012
Zhu, H. (2015) Paralasianthus (Rubiaceae), a new genus from Southeast Asia. Phytotaxa 202 (4): 273–278. http://dx.doi.org/10.11646/phytotaxa.202.4.5