Abstract
The present paper discusses the identity and distribution of Tarenna flava Alston (Rubiaceae: Ixoroideae) in India. Detailed description with colour photographs are provided along with morphological comparison of the allied species Tarenna asiatica (L.) Kuntze ex K. Schum. Here we also designated the lectotypes for the names Tarenna flava and Stylocoryna webera A. Rich var. montana Thwaites.
References
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Alston, A.H.G. (1931) Rubiaceae<em> In: </em>Trimen, H. (ed.)<em> Hand-Book of Flora of Ceylon</em> 6: 150 .</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Bridson, D.M. (1979) Studies in <em>Tarenna </em>sensu lato (Rubiaceae subfamily Cinchonoideae) for part 2 of ‘Flora of Tropical East Africa: Rubiaceae’. <em>Kew Bulletin</em> 34 : 377–402. https://doi.org/10.2307/4110002 </span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Davis, A.P., Govaerts, R., Bridson, D.M., Ruhsam, M., Moat, J. & Brummitt, N.A. (2009) A global assessment of distribution, diversity, endemism, and taxonomic effort in the Rubiaceae. <em>Annals of the Missouri Botanical Garden </em>96: 68–78. https://doi.org/10.3417/2006205</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">De Block, P. & Robbrecht, E. (1998) Pollen morphology of the Pavetteae (Rubiaceae, Ixoroideae) and its taxonomic significance. <em>Grana</em> 37: 260–275. https://doi.org/10.1080/00173139809362678</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">De Block, P., Degreef, J. & Robbrecht, E. (2001) Reinstatement of the Afro-Malagasy genus <em>Coptosperma</em> ( Rubiaceae, Ixoroideae, Pavetteae). <em>Systematics and Geography of Plants</em> 71: 455–492. https://doi.org/10.2307/3668694</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Gaertner, J. (1788) <em>Seminibus Plantarum </em>1. Academiae Carolinae, Stuttgardiae. pp. 139.</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Gamble, J.S. & Fischer, C.E.C. (1923) <em>Flora of the Presidency of Madras </em>2. Newman and Adlard, London. pp. 862. </span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Hooker, J.D. (1880) Rubiaceae.<em> In: </em>Hooker, J.D. (ed.)<em> Flora of British India</em> 3. pp. 1–192. </span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Kesonbua, W. & Chantaranothai, P. (2008) A checklist of the genus <em>Tarenna</em> (Rubiaceae) in Thailand. <em>Thai Forest Bulletin Botany </em>36: 18–45. </span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Linnaeus, C. (1753) <em>Species Plantarum </em>1. Holmiæ, Impensis. Laurentii Salvii, [Stockholm], pp. 110.</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Matthew, K.M. (1996) <em>Illustration on the flora of the Palni Hills</em>. Rapinat Herbarium, 400 pp.</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Matthew, K.M. (1999) <em>The Flora of the Palni Hills, South India: Gamopetalea & Monochlamydea (Caprifoliaceae-Salicaceae)</em>. Rapinat Herbarium, 633 pp.</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Merrill, E.D. (1920) Studies on Philippine Rubiaceae IV. <em>Philippine Journal of Science</em> 17: 425–486. https://doi.org/10.3860/pjsb.v1i1.908</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Moon, A. (1824) <em>A catalogue of the indigenous and exotic plants growing in Ceylon, Distinguishing the several esculent vegetables, fruits, roots and grains (etc.)</em>. Wesleyan Mission Press, 1224 pp.</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Murugan, P., Sulaiman, M. & Paul, B. (2020) <em>Tarenna flava</em> Alston (Rubiaceae): A New Record for Kerala from Agasthyamalai Biosphere Reserve, Western Ghats, India. <em>Indian Forester</em> 146: 780–781. https://doi.org/10.36808/if/2020/v146i8/154870</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">POWO (2022) <em>Plants of the World Online</em>. Royal Botanic Gardens, Kew. Available from: http://www.plantsoftheworldonline.org/ (accessed 7 May 2022).</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Richard, A. (1834) <em>Mémoire sur la famille des Rubiacées: contenant la description générale de cette famille et les caracterès des genres qui la composent</em>. Vol. 5. Société d’histoire naturelle de Paris, pp. 248. </span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Ridsdale, C.E. (1998) Rubiaceae.<em> In: </em>Dassanayake, M.D. (ed.)<em> A Revised Handbook to the Flora of Ceylon. </em>Vol. 12. CRC Press, Sri Lanka, pp. 207–208.</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Sasidharan, N. (2013) <em>Flowering plants of Kerala: CD-ROM ver 2.0. </em>Kerala Forest Research Institute, Peechi.</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Sasidharan, N. & Sivarajan, V.V. (1990) <em>Tarenna trichurensis</em> - a new species of Rubiaceae from Western Peninsular India. <em>Journal of Economic and Taxonomic Botany </em>14: 243–245.</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Schumann, K. (1902) Rubiaceae.<em> In: </em>Schmidt, J. (ed.) Flora of Koh Chang. Contributions to the knowledge of the vegetation in the Gulf of Siam. <em>Botanisk Tidsskrift</em> 24: 329–341.</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Thwaites, G.H.K. & Hooker, J.D. (1859) <em>Enumeratio plantarum Zeylaniae: an enumeration of Ceylon plants, with descriptions of the new and little known genera and species, observations on their habitats, uses, native names, etc</em>. Dulau, 158 pp.</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Turland, N.J., Wiersema, J.H., Barrie, F.R., Greuter, W., Hawksworth, D.L., Herendeen, P.S., Knapp, S., Kusber, W.H., Li, D.Z., Marhold, K., May, T.W., McNeill, J., Monro, A.M., Prado, J., Price, M.J. & Smith, G.F. (Eds.) (2018) <em>International Code of Nomenclature for algae, fungi, and plants (Shenzhen Code) adopted by the Nineteenth International Botanical Congress Shenzhen, China, July 2017. </em>Regnum Vegetabile 159. Glashütten, Koeltz Botanical Books, 254 pp. https://doi.org/10.12705/Code.2018</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Bridson, D.M. (1979) Studies in <em>Tarenna </em>sensu lato (Rubiaceae subfamily Cinchonoideae) for part 2 of ‘Flora of Tropical East Africa: Rubiaceae’. <em>Kew Bulletin</em> 34 : 377–402. https://doi.org/10.2307/4110002 </span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Davis, A.P., Govaerts, R., Bridson, D.M., Ruhsam, M., Moat, J. & Brummitt, N.A. (2009) A global assessment of distribution, diversity, endemism, and taxonomic effort in the Rubiaceae. <em>Annals of the Missouri Botanical Garden </em>96: 68–78. https://doi.org/10.3417/2006205</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">De Block, P. & Robbrecht, E. (1998) Pollen morphology of the Pavetteae (Rubiaceae, Ixoroideae) and its taxonomic significance. <em>Grana</em> 37: 260–275. https://doi.org/10.1080/00173139809362678</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">De Block, P., Degreef, J. & Robbrecht, E. (2001) Reinstatement of the Afro-Malagasy genus <em>Coptosperma</em> ( Rubiaceae, Ixoroideae, Pavetteae). <em>Systematics and Geography of Plants</em> 71: 455–492. https://doi.org/10.2307/3668694</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Gaertner, J. (1788) <em>Seminibus Plantarum </em>1. Academiae Carolinae, Stuttgardiae. pp. 139.</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Gamble, J.S. & Fischer, C.E.C. (1923) <em>Flora of the Presidency of Madras </em>2. Newman and Adlard, London. pp. 862. </span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Hooker, J.D. (1880) Rubiaceae.<em> In: </em>Hooker, J.D. (ed.)<em> Flora of British India</em> 3. pp. 1–192. </span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Kesonbua, W. & Chantaranothai, P. (2008) A checklist of the genus <em>Tarenna</em> (Rubiaceae) in Thailand. <em>Thai Forest Bulletin Botany </em>36: 18–45. </span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Linnaeus, C. (1753) <em>Species Plantarum </em>1. Holmiæ, Impensis. Laurentii Salvii, [Stockholm], pp. 110.</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Matthew, K.M. (1996) <em>Illustration on the flora of the Palni Hills</em>. Rapinat Herbarium, 400 pp.</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Matthew, K.M. (1999) <em>The Flora of the Palni Hills, South India: Gamopetalea & Monochlamydea (Caprifoliaceae-Salicaceae)</em>. Rapinat Herbarium, 633 pp.</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Merrill, E.D. (1920) Studies on Philippine Rubiaceae IV. <em>Philippine Journal of Science</em> 17: 425–486. https://doi.org/10.3860/pjsb.v1i1.908</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Moon, A. (1824) <em>A catalogue of the indigenous and exotic plants growing in Ceylon, Distinguishing the several esculent vegetables, fruits, roots and grains (etc.)</em>. Wesleyan Mission Press, 1224 pp.</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Murugan, P., Sulaiman, M. & Paul, B. (2020) <em>Tarenna flava</em> Alston (Rubiaceae): A New Record for Kerala from Agasthyamalai Biosphere Reserve, Western Ghats, India. <em>Indian Forester</em> 146: 780–781. https://doi.org/10.36808/if/2020/v146i8/154870</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">POWO (2022) <em>Plants of the World Online</em>. Royal Botanic Gardens, Kew. Available from: http://www.plantsoftheworldonline.org/ (accessed 7 May 2022).</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Richard, A. (1834) <em>Mémoire sur la famille des Rubiacées: contenant la description générale de cette famille et les caracterès des genres qui la composent</em>. Vol. 5. Société d’histoire naturelle de Paris, pp. 248. </span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Ridsdale, C.E. (1998) Rubiaceae.<em> In: </em>Dassanayake, M.D. (ed.)<em> A Revised Handbook to the Flora of Ceylon. </em>Vol. 12. CRC Press, Sri Lanka, pp. 207–208.</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Sasidharan, N. (2013) <em>Flowering plants of Kerala: CD-ROM ver 2.0. </em>Kerala Forest Research Institute, Peechi.</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Sasidharan, N. & Sivarajan, V.V. (1990) <em>Tarenna trichurensis</em> - a new species of Rubiaceae from Western Peninsular India. <em>Journal of Economic and Taxonomic Botany </em>14: 243–245.</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Schumann, K. (1902) Rubiaceae.<em> In: </em>Schmidt, J. (ed.) Flora of Koh Chang. Contributions to the knowledge of the vegetation in the Gulf of Siam. <em>Botanisk Tidsskrift</em> 24: 329–341.</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Thwaites, G.H.K. & Hooker, J.D. (1859) <em>Enumeratio plantarum Zeylaniae: an enumeration of Ceylon plants, with descriptions of the new and little known genera and species, observations on their habitats, uses, native names, etc</em>. Dulau, 158 pp.</span></span></span></p>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Turland, N.J., Wiersema, J.H., Barrie, F.R., Greuter, W., Hawksworth, D.L., Herendeen, P.S., Knapp, S., Kusber, W.H., Li, D.Z., Marhold, K., May, T.W., McNeill, J., Monro, A.M., Prado, J., Price, M.J. & Smith, G.F. (Eds.) (2018) <em>International Code of Nomenclature for algae, fungi, and plants (Shenzhen Code) adopted by the Nineteenth International Botanical Congress Shenzhen, China, July 2017. </em>Regnum Vegetabile 159. Glashütten, Koeltz Botanical Books, 254 pp. https://doi.org/10.12705/Code.2018</span></span></span></p>