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| Argyreia manjolaiensis Karupp., Bharath & P.S.S.Rich., in Yadav, Karuppusamy et Richard, 2024. |
Abstract
Argyreia manjolaiensis (Convolvulaceae), a new species from the southern Western Ghats of Tamil Nadu, is described and illustrated. Detailed description, photoplates, and distribution map are provided. Information on population status and ecology is also presented to facilitate the identification and conservation of the species.
Keywords: Endemic species, Morning glory, Tamil Nadu, Taxonomy
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| Argyreia manjolaiensis Karupp., Bharath & P.S.S.Rich.: a. A flowering twig; b. Leaf–abaxial view; c. Leaf–adaxial view; d. Leaf abaxial surface–Closeup view; e. Leaf–tip; f. Inflorescence; g. Bracts; h. Flower–frontview; i. Sepals; j. Flower–side view; k. Flower cut open showing stamens and pistil; l. Stamens; m. Pistil (Photos P.S.S. Richard) |
Argyreia manjolaiensis Karupp., Bharath & P.S.S.Rich., sp. nov.
Morphologically similar to A. fulgens Choisy but can be easily distinguished from 2–2.5 cm long petiole (vs. 3–7 cm long), a cordate lamina base (vs. rounded), a hairy abaxial surface of the lamina (vs. glabrous), 12 secondary veins (vs. 18–22), 10–12-flowered inflorescence (vs. 5–7-flowered), 3 bracts (vs. 2), subequal or unequal sepals (vs. equal) and a corolla tube that is pale purple at the base and milky white at the throat (vs. dark purple throughout). A detailed morphological comparison is provided in Table 1.
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Yadav P.B.S., Karuppusamy S. and P.S.S. Richard. 2024. A New Species of Argyreia (Convolvulaceae) from the southern Western Ghats, India. Rheedea. 34(5); rheedea.in/journal/GI7f2reS
