Oldenlandia vasudevanii (Spermacoceae, Rubiaceae) a new species from the Southern Western Ghats, India

Abstract

The new species Oldenlandia vasudevanii from the Southern Western Ghats, Palakkad, Kerala, India, is described and illustrated. The species differs from its allied species O. stocksii and O. hygrophila in terms of stout pedicel, calyx lobes exceeding the level of corolla, number of stipules, number of accessory calyx teeth, and size of the corolla tube. Description of taxa with distribution, ecology and comparison among allied taxa has been provided.

Revisiting the Hedyotis–oldenlandia Complex in India, With a Note on Scleromitrion

“…Sectional and generic notes, nomenclatural novelties, distributional notes and new species records have been gathered from published literature and floristic accounts (Wight & Arnott, 1834;Beddome, 1874;Kurz, 1877; Hooker, 1880;Gamble, 1921;Blatter, 1934;Bremekamp, 1952;Yamazaki, 1966;Rao & Hemadri, 1973;Bremekamp, 1974;Babu, 1977;Henry et al, 1979;Henry & Swaminathan, 1982;Deb & Dutta, 1983, 1985, 1986a, 1986bSivarajan & Biju, 1990;Ravikumar, 1999;Murugesan & Balasubramaniam, 2007;Viswanathan & Manikandan, 2008;Karuppusamy & Ravichandran, 2014;Jose et al, 2015;Soumya et al, 2017;Nandikar & Kishor, 2019;Prabhukumar et al, 2019;Kumar et al, 2020). For the plant names and authors, the International Plant Name Index (Royal Botanic Gardens, Kew, Harvard University Herbaria & Australian National Herbarium, continuously updated) has been followed throughout the text.…”