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Hareesh, V. S.; Preethamol, S. N.; Sabu, M.; Thoppil, J. E.

Revisiting the Taxonomy of Ophiorrhiza Codyensis and Lectotypification of O. Pykarensis (Rubiaceae), Two Endemic Taxa of the Western Ghats

. Phytotaxa 2020, 452, 173–179.