Abstract
Phlogacanthus jenkinsii C.B. Clarke (Acanthaceae: Andrographideae), a poorly known species in India, is recollected after 140 years from Mizoram. A detailed taxonomic description along with a photo plate, illustration and comparative diagnostic characters with closely allied species are provided in the present communication.
References
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Anderson, T. (1867) An enumeration of the Indian species of Acanthaceae. Journal of Linnean Society. Botany 9: 425–526. https://doi.org/10.1111/j.1095-8339.1867.tb01308.x</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Beddome, R.H. (1872) Icones Plantarum Indiae Orientalis or Plates and Descriptions of New and Rare Plants from Southern India and Ceylon 1. Gantz Brothers. Madras, 70 pp. & 300 plates. </span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Clarke, C.B. (1884) Phlogacanthus. In: Hooker, J.D. (Ed.) Flora of British India 4. Bishen Singh Mahendra Pal Singh, Dehradun, India, pp. 510–513. </span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Deng, Y-F. (2020) Phlogacanthus Nees. In: Deng, Y.F., Li, Z.Y., Wang, Q. & Peng, H. (eds.) Flora of Pan-Himalaya 46. Science Press, Beijing & Cambridge University Press, Cambridge, pp. 319–335.</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Dutta, B., Sarma, J. & Borthakur, S.K. (2016) Diversity and ethnobotany of the genus Phlogacanthus Nees in Assam, India. International Journal of Life-Sciences Scientific Researches 2 (4): 472–477. https://doi.org/10.21276/ijlssr.2016.2.4.25</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Dutta, B. (2020) Studies on the taxonomy of the genus Phlogacanthus Nees (Acanthaceae) of Assam. Ph.D. Thesis. Submitted to Gauhati University. Guwahati, Assam, pp. 27–62.</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Hai<span lang="en-GB">,</span> D.V., Nguyen, M.T., Nguyen, H.T.T., Choudhary, R.K. & Deng, Y-F. (2018) An updated taxonomy of the genus Phlogacanthus (Acanthaceae) in Vietnam. Phytotaxa 372 (2): 167–175. https://doi.org/10.11646/phytotaxa.372.2.3</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Hardwicke<span lang="en-GB">,</span> T. (1799) Narrative of a journey to Sirinagur. Asiatick Researches 6: 309–381.</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Hu, C.C. (2002) Phlogacanthus. In: Hu, C.C. (ed.) Flora Reipublicae Popularis Sinicae 70. Science Press, Beijing, pp. 207–214.</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Hu, C.C. & Fu, X.P. (2005) Phlogacanthus. In: Fu, L.K. (ed.) Higher Plants of China 10. Qingdao Publishing House, Qingdao, pp. 329–416.</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Hu, C.C., Deng, Y.F. & Daniel, T.F. (2011) Phlogacanthus & Cystacanthus. In: Wu, Z.Y., Raven, P. & Hong, D.Y. (Eds.) Flora of China. 19. Science Press, Beijing & Missouri Botanical Garden Press, St. Louis, pp. 474–477.</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">IUCN. (2012a) IUCN Red list Categories and Criteria. Version 3.1. (2<sup>nd</sup> ed.) Gland, Switzerland and Cambridge, United Kingdom, 32 pp. Available at: www.iucnredlist.org/technical-documents/categories-and-criteria (accessed 22 November 2022)</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">IUCN. (2012b) Guidelines for Using the IUCN Red list Categories and Criteria at Regional and National Levels. Version 4.0. Gland, Switzerland and Cambridge, United Kingdom. Available at: www.iucnredlist.org/technical-documents/categories-and-criteria (accessed 22 November 2022)</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 Committee. Available at: http://www.iucnredlist.org/documents/RedListGuidelines.pdf (accessed 22 November 2022)</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Kanjilal, U.N., Kanjilal, P.C., Das, P. & De, R.N. (1934) Flora of Assam 3. Govt. of Assam, Shillong, India, 578 pp. </span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Maity, R. & Dash, S.S. (2020) Lectotypification of seven names in genus Phlogacanthus (Acanthaceae). Nelumbo 62 (2): 266–277. https://doi.org/10.20324/nelumbo/v62/2020/157463</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Maity, R. & Dash, S.S. (2021a) Lectotypification of three names in the genus Phlogacanthus Nees (Acanthaceae). Kew Bulletin 76: 365–370. https://doi.org/10.1007/s12225-021-09938-3</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Maity, R. & Dash, S.S. (2021b) Notes on taxonomic status of Phlogacanthus gracilis (Acanthaceae) and typification of the name. Nelumbo 63 (2): 94–97.</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Mabberley<span lang="en-GB">,</span> D.J. (1980) A re-examination of the ‘Indian Catalogues’ with particular reference to Hortus Malabaricus. In: Manilal, K.S. (ed.) Botany and History of Hortus Malabaricus. Oxford & IDH Publishing, New Delhi, pp. 80–110.</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Mabberley<span lang="en-GB">,</span> D.J. (2017) Mabberley’s Plant-book – a portable dictionary of plants, their classification and uses. 4th edition. Cambridge University Press, Cambridge, pp. 1102. https://doi.org/10.1017/9781316335581</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Nees Von Esenbeck, C.G. (1832) Acanthaceae Indiae Orientalis. In: Wallich, N. (Ed.) Plantae Asiaticae Rariories 3. Treuttel, Wurtz, Richter, London. pp. 70–112.</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Scotland, R.W. (1992) Pollen morphology of Andrographideae (Acanthaceae). Review of Palaeobotany and Palynology 72: 229–243. https://doi.org/10.1016/0034-6667(92)90028-F</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Shukla, B.K. & Sinha, G.P. (2012) Phlogacanthus. In: Sinha, G.P., Singh, D.K. & Singh, K.P. (Eds.) Flora of Mizoram 2. Botanical Survey of India, Kolkata. pp. 250–254.</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Scotland, R.W. & Vollesen, K. (2000) Classification of Acanthaceae. Kew Bulletin 55: 513–589. https://doi.org/10.2307/4118776</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Wallich, N. (1830) Plantae Asiaticae Rariories 1. Treuttel, Wurtz, Richter, London, 84 pp. </span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Wallich, N. (1831) Plantae Asiaticae Rariories 2. Treuttel, Wurtz, Richter, London, 86 pp.</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Wu, Z.Y., Lu, A.M., Tang, Y., Chen, Z.D. & Li, D.Z. (2003) The families and genera of angiosperms in China. Science Press, Beijing, 1210 pp.</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Xia, C. & Deng, Y.F. (2013) Phlogacanthus yangtsekiangensis, a new combination in Chinese Acanthaceae. Phytotaxa 104 (1): 58–60. https://doi.org/10.11646/phytotaxa.104.1.9</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Beddome, R.H. (1872) Icones Plantarum Indiae Orientalis or Plates and Descriptions of New and Rare Plants from Southern India and Ceylon 1. Gantz Brothers. Madras, 70 pp. & 300 plates. </span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Clarke, C.B. (1884) Phlogacanthus. In: Hooker, J.D. (Ed.) Flora of British India 4. Bishen Singh Mahendra Pal Singh, Dehradun, India, pp. 510–513. </span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Deng, Y-F. (2020) Phlogacanthus Nees. In: Deng, Y.F., Li, Z.Y., Wang, Q. & Peng, H. (eds.) Flora of Pan-Himalaya 46. Science Press, Beijing & Cambridge University Press, Cambridge, pp. 319–335.</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Dutta, B., Sarma, J. & Borthakur, S.K. (2016) Diversity and ethnobotany of the genus Phlogacanthus Nees in Assam, India. International Journal of Life-Sciences Scientific Researches 2 (4): 472–477. https://doi.org/10.21276/ijlssr.2016.2.4.25</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Dutta, B. (2020) Studies on the taxonomy of the genus Phlogacanthus Nees (Acanthaceae) of Assam. Ph.D. Thesis. Submitted to Gauhati University. Guwahati, Assam, pp. 27–62.</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Hai<span lang="en-GB">,</span> D.V., Nguyen, M.T., Nguyen, H.T.T., Choudhary, R.K. & Deng, Y-F. (2018) An updated taxonomy of the genus Phlogacanthus (Acanthaceae) in Vietnam. Phytotaxa 372 (2): 167–175. https://doi.org/10.11646/phytotaxa.372.2.3</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Hardwicke<span lang="en-GB">,</span> T. (1799) Narrative of a journey to Sirinagur. Asiatick Researches 6: 309–381.</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Hu, C.C. (2002) Phlogacanthus. In: Hu, C.C. (ed.) Flora Reipublicae Popularis Sinicae 70. Science Press, Beijing, pp. 207–214.</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Hu, C.C. & Fu, X.P. (2005) Phlogacanthus. In: Fu, L.K. (ed.) Higher Plants of China 10. Qingdao Publishing House, Qingdao, pp. 329–416.</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Hu, C.C., Deng, Y.F. & Daniel, T.F. (2011) Phlogacanthus & Cystacanthus. In: Wu, Z.Y., Raven, P. & Hong, D.Y. (Eds.) Flora of China. 19. Science Press, Beijing & Missouri Botanical Garden Press, St. Louis, pp. 474–477.</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">IUCN. (2012a) IUCN Red list Categories and Criteria. Version 3.1. (2<sup>nd</sup> ed.) Gland, Switzerland and Cambridge, United Kingdom, 32 pp. Available at: www.iucnredlist.org/technical-documents/categories-and-criteria (accessed 22 November 2022)</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">IUCN. (2012b) Guidelines for Using the IUCN Red list Categories and Criteria at Regional and National Levels. Version 4.0. Gland, Switzerland and Cambridge, United Kingdom. Available at: www.iucnredlist.org/technical-documents/categories-and-criteria (accessed 22 November 2022)</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 Committee. Available at: http://www.iucnredlist.org/documents/RedListGuidelines.pdf (accessed 22 November 2022)</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Kanjilal, U.N., Kanjilal, P.C., Das, P. & De, R.N. (1934) Flora of Assam 3. Govt. of Assam, Shillong, India, 578 pp. </span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Maity, R. & Dash, S.S. (2020) Lectotypification of seven names in genus Phlogacanthus (Acanthaceae). Nelumbo 62 (2): 266–277. https://doi.org/10.20324/nelumbo/v62/2020/157463</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Maity, R. & Dash, S.S. (2021a) Lectotypification of three names in the genus Phlogacanthus Nees (Acanthaceae). Kew Bulletin 76: 365–370. https://doi.org/10.1007/s12225-021-09938-3</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Maity, R. & Dash, S.S. (2021b) Notes on taxonomic status of Phlogacanthus gracilis (Acanthaceae) and typification of the name. Nelumbo 63 (2): 94–97.</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Mabberley<span lang="en-GB">,</span> D.J. (1980) A re-examination of the ‘Indian Catalogues’ with particular reference to Hortus Malabaricus. In: Manilal, K.S. (ed.) Botany and History of Hortus Malabaricus. Oxford & IDH Publishing, New Delhi, pp. 80–110.</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Mabberley<span lang="en-GB">,</span> D.J. (2017) Mabberley’s Plant-book – a portable dictionary of plants, their classification and uses. 4th edition. Cambridge University Press, Cambridge, pp. 1102. https://doi.org/10.1017/9781316335581</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Nees Von Esenbeck, C.G. (1832) Acanthaceae Indiae Orientalis. In: Wallich, N. (Ed.) Plantae Asiaticae Rariories 3. Treuttel, Wurtz, Richter, London. pp. 70–112.</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Scotland, R.W. (1992) Pollen morphology of Andrographideae (Acanthaceae). Review of Palaeobotany and Palynology 72: 229–243. https://doi.org/10.1016/0034-6667(92)90028-F</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Shukla, B.K. & Sinha, G.P. (2012) Phlogacanthus. In: Sinha, G.P., Singh, D.K. & Singh, K.P. (Eds.) Flora of Mizoram 2. Botanical Survey of India, Kolkata. pp. 250–254.</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Scotland, R.W. & Vollesen, K. (2000) Classification of Acanthaceae. Kew Bulletin 55: 513–589. https://doi.org/10.2307/4118776</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Wallich, N. (1830) Plantae Asiaticae Rariories 1. Treuttel, Wurtz, Richter, London, 84 pp. </span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Wallich, N. (1831) Plantae Asiaticae Rariories 2. Treuttel, Wurtz, Richter, London, 86 pp.</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Wu, Z.Y., Lu, A.M., Tang, Y., Chen, Z.D. & Li, D.Z. (2003) The families and genera of angiosperms in China. Science Press, Beijing, 1210 pp.</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Xia, C. & Deng, Y.F. (2013) Phlogacanthus yangtsekiangensis, a new combination in Chinese Acanthaceae. Phytotaxa 104 (1): 58–60. https://doi.org/10.11646/phytotaxa.104.1.9</span></span></span>