From the Greek sphaera, "a ball, or a sphere," and anthos, "flower," in reference to the shape of the flower.
Plant small, epiphytic, caespitose; roots slender, flexuous. Secondary stems filiform, terete, 4-7 cm long, with a slightly loose sheath below the middle and another 1-2 sheaths at the base, unifoliate. Leaf spreading, rigid, oblong-ovate, acuminate, acute, tridenticulate, base cordate, sessile, 3-4.5 X 1.5-2.8 cm. Inflorescence a fascicle of single flowers, 1-3, from a spathe, 6-8 mm long, at the base of the leaf, flowers small, globose, yellow or purple; floral bract tubular, 5 mm long, pedicel 5 mm long; ovary brown, verrucose, 1.5 mm long; dorsal sepal broadly ovate to suborbicular, obtuse, deeply concave, 4 X 4 mm spread, 3-veined; lateral sepals connate into a concave synsepal similar to the dorsal sepal, 4-veined; petals ovate, acute, 4 X 1.2 mm, 1-veined; lip ovate, obtuse, wedged within the synsepal, base broadly adherent to the base of the column, disc plain, 2.5 X 1.5 mm; column protruding above the lip, 1.5 X 1 mm, rostellum pointed.