A new Oberonia (Orchidaceae) from Kerala, India

Oberonia sebastiana Shetty et Vivek. affinis, sed marginibus bractearum fimbriatis; apicibus petalorum truncatis et dentatis; labio reniformi et pubescenti; disco prominenti et ovato; lobis lateralibus auriformibus, longioribus quam latis; lobulis lobum medianum orbiculatis, differt. — Typus: Ramachandran 66948 (CAL, iso MH), India, Kerala State, Cannanore District, Chandanathode, 825 m alt., 15-8-1980. Pendulous epiphytes. Leaves articulate, up to 15 cm long, 0.5—1.5 cm broad, ensiform, acute, glabrous. Scape adnate to the upper leaf, up to 9 cm long, 0.3—0.6 cm broad, flattened. Spike up to 18 cm long. Flowers pedicelled, pale greenish yellow, in verticils of 3—6; verticils 2—3 mm apart. Bracts slightly longer than the ovary, c. 2 x 1.25 mm, lanceolate, acuminate, fringed along margin, gland-dotted. Sepals and petals deflexed, sparsely gland-dotted. Sepals c. 1.25 x 1 mm, ovate-oblong, obtuse. Petals c. 1.25 x 0.5 mm, linear, truncate and toothed at apex. Lip reniform in outline, 3-lobed, c. 1.5 mm long, c. 2 mm broad across the lateral lobes, pubescent, gland-dotted; lateral lobes auriform, longer than broad, folded upwards around the column; midlobe c. 0.5 mm long, c. 0.75 mm broad; 2-lobuled with a broad sinus in between; lobules of midlobe orbicular; disc ovate, concave; nerves not clear. Column c. 0.5 x 0.5 mm, oblong; stigma suborbicular. Ovary with pedicel c. 2 mm long. Pollinia ovoid.