Vol. 75 No. 2 (2020)
Articles

Ophiorrhiza meenachilarensis, a new species of Rubiaceae from southern Western Ghats, India

Anoop Puthuparampil Balan
KSCSTE-Malabar Botanical Garden and Institute for Plant Sciences, Kozhikode, Kerala, India
Aloor Jose Robi
Department of Botany, Bishop Abraham Memorial College, Thuruthicad, Pathanamthitta, Kerala, India
Bio
Ginu Joseph
Department of Botany, Bishop Abraham Memorial College, Thuruthicad, Pathanamthitta, Kerala, India

Published 2020-11-18

Keywords

  • Ophiorrhizeae,
  • Camptothecin,
  • Kerala,
  • Rubioideae,
  • Vagamon hills

How to Cite

Balan, A. P., Robi, A. J., & Joseph, G. (2020). Ophiorrhiza meenachilarensis, a new species of Rubiaceae from southern Western Ghats, India. Webbia, 75(2), 231–236. https://doi.org/10.36253/jopt-8508

Funding data

Abstract

A new species of Ophiorriza (Rubiaceae) from southern Western Ghats, India is here described and illustrated. Ophiorriza meenachilarensis is similar to O. eriantha, from which it differs in its herbaceous habit (vs. shrubby habit), densely villous-hirsute stem (vs. pubescent-glabrous stem), entire stipule (vs. bifid stipule), short-peduncled cymes (vs. comparatively long-peduncled cymes), unscented flowers (vs. scented flowers) and corolla tube with a ring of hairs at the middle of the tube (vs. corolla tube without a ring of hairs). A detailed description, illustrations, ecological observations, and geographic distribution are provided.

References

Bremer B, Manen JF. 2000. Phylogeny and classification of the subfamily Rubioideae (Rubiaceae). Pl Syst Evol. 225:43–72. https://doi.org/10.1007/BF00985458
Chen T, Taylor, CM. 2011. Ophiorrhiza. In: Wu ZY, P.H. Raven (Eds.) Flora of China. Science Press, Beijing & Missouri Botanical Garden Press, St. Louis. Vol. 19, p. 258–282.
Darwin, SP. 1976. The Pacific species of Ophiorrhiza L. (Rubiaceae). Lyonia 1:48–101.
Deb DB, Mondal DC. 1997. Taxonomic revision of the genus Ophiorrhiza L. (Rubiaceae) in Indian subcontinent. Bull Bot Surv India 39:1–148.
Halford DA. 1991. The genus Ophiorrhiza L. (Rubiaceae) in Australia. Austrobaileya 3: 369–375. https://www.jstor.org/stable/41738777
Hareesh VS, Wu, L, Joe A, Sabu, M. 2017a. Ophiorrhiza meghalayensis (Rubiaceae: Ophiorrhizeae), a new species from Meghalaya, North-EastIndia. Phytotaxa 307:297–300. http://dx.doi.org/10.11646/phytotaxa.307.4.8
Hareesh VS, Joe A, Sabu M. 2017b. Ophiorrhiza debiana (Rubiaceae, Rubioideae), a new species from North-East India. Phytotaxa 309:291–294. http://dx.doi.org/10.11646/phytotaxa.309.3.13
Hareesh VS, Salish MJ, Wu L, Joseph G, Sabu M. 2018. Ophiorrhiza jacobii (Rubiaceae) sp. nov. from Western Ghats, India. Nordic J Bot. 36:E01519. https://doi.org/10.1111/njb.01519
Hareesh VS, Sreekumar VB, Prabhukumar KM, Nirmesh TK, Sreejith KA. 2015a. Ophiorrhiza sahyadriensis (Rubiaceae), a new species from Southern Western Ghats, Kerala, India. Phytotaxa 202:219–224. https://doi.org/10.11646/phytotaxa.202.3.6
Hareesh VS, Sreekumar VB, Prabhukumar KM, Sabu M, Sreejith KA. 2015b. Lectotypification of Ophiorrhiza heterostyla Dunn and the new record of O. rugosa var. angustifolia (Thwaites) Ridsdale (Rubiaceae) for India. Webbia 70: 109–112. https://doi.org/10.1080/00837792.2015.1015249
IUCN. 2012. IUCN Red List Categories and Criteria: Version 3.1. Second Edition. International Union for Conservation of Nature and Natural Resources. Gland, Switzerland and Cambridge, UK. p. 1–32
Khan AES, Santhosh Kumar ES, Pushpangadan P. 1998. A new species of Ophiorrhiza L. (Rubiaceae) from, Kerala, India. J Bombay Nat Hist Soc. 95:317–318.
Lo HS. 1990. Taxonomic revision of the Chinese species of Ophiorrhiza (Rubiaceae). Bull Bot Res. 10:1–82.
Nayar TS, Beegam AR, Sibi M. 2014. Flowering Plants of the Western Ghats, India. Jawaharlal Nehru Tropical Botanic Garden and Research Institute, Thiruvananthapuram. Vol. 1, p. 794–797.
Ramamurthy K, Rajan R. 1985. A new species of Ophiorrhiza L. (Rubiaceae) from, Kerala state, India. J Bombay Nat Hist Soc. 82:174–176.
Rajan R, Varghese SC, Kurup R, Gopalakrishnan R, Venkataraman R, Satheeshkumar K, Baby S. 2016. HPTLC-based quantification of camptothecin in Ophiorrhiza species of the southern Western Ghats in India. Cogent Chemistry 2(1):1275408. http://dx.doi.org/10.1080/23312009.2016.1275408
Tao C, Taylor CM. 2011. Ophiorrhiza. In: Wu ZY, Raven PH, Hong DY (Eds.) Flora of China. (Cucurbitaceae through Valerianaceae, with Annonaceae and Berberidaceae). Beijing: Science Press, and St Louis: Missouri Botanical Garden Press. Vol. 19, p. 258–282
WCSP. 2019. 'World Checklist of Selected Plant Families’ Facilitated by the Royal Botanic Gardens, Kew. Published on the Internet; http://wcsp.science.kew.org/ Retrieved 14 March 2020.