Diagnosis: Lepanthes dorae is similar to L. pachyglossa Luer, but the new species can be distinguished by ovatelanceolate sepals (vs. triangular-ovate); the transversely bilobed petals with the lower lobe triangular and falcate (vs. the lower lobe broadly uncinate), and the most distinguishing characteristic is the oblong, bilobed pubescent appendix, located into an anterior cavity from the sinus (vs. an external, short, minute appendix). Plants medium in size, epiphytic, caespitose, 11.3–15.5 cm tall; roots, slender, flexuous, filiform, up to 0.65 mm in diameter. Ramicauls slender, erect, 8.7–12.0 cm long, enclosed by 8–15 acuminate, furrowed, and long-ciliate lepanthiform sheaths, with a dilated, ciliate ostia. Leaves erect, coriaceous, elliptical, attenuate, the blade subplicated above the base, with three main veins, 5.90–8.47 × 1.73–2.19 cm, the apex emarginate with an abaxial apiculum in the middle, the obtuse base cuneate contracted into a petiole of 2–3 mm long. Inflorescence a congested, distichous raceme, 13–15, successively many-flowered, 2.73– 3.75 cm long, including the peduncle, held appressed to the abaxial surface of the leaf by a filiform, terete peduncle, 1.65–2.68 cm long, borne near the apex of the ramicaul; floral bracts conical, acuminate, minutely verrucose, 1.45–1.66 mm long; pedicels terete, 1.44–1.87 mm. Ovary terete, costate, 2.03–3.10 mm long. Flowers with sepals pale green-yellow; petals dark red in the borders, yellow in the middle; lip redbrown. Dorsal sepal ovate-lanceolate, slightly convex, acute, 3-veined, 5.85–8.26 × 2.99–4.62 mm connate to the lateral sepals for 0.9 mm. Lateral sepals, ovate-triangular, oblique, acute, sometimes imbricate in natural position, 2-veined, 5.17–7.61 × 1.86–2.87 mm, connate for 1.2–1.85 mm long. Petals transversally bilobed, microscopically pubescent, imbricate, 3-veined, 1.45–2.05 × 3.09–4.63 mm; the upper lobe broadly-oblong, rounded; the lower lobe triangular, falcate towards the apex, rounded. Lip bilaminate, the blades with the base obtuse and the apices acute, hirsute, embracing the column, clavate, 3.5–2.25 × 0.33– 0.61 mm, supported by broadly cuneate connectives, the body broad, thick, adnate to the base of the column, the sinus thick, protuberant with a cleft cavity on the anterior surface into which the oblong, pubescent and bilobed appendix fits. Column terete, 1.24–1.99 mm long, the rostellum protruding, the anther dorsal, and stigma ventral. Anther cap cordate, cucullate, 0.63– 0.67 mm wide. Pollinia 2, yellow, pyriform, narrowly obovoid, 0.44–1.07 mm long.