Plants terrestrial, 25-45 cm tall. Rhizome slender, many noded. Stem ascending, 8-15 cm, stout, 5-7-leaved. Leaves widely spaced or clustered toward apex of stem, abaxially grayish white, adaxially green with white or pale green midvein and irregular white markings, elliptic to oblong, 4.5-9 × 2-4 cm, base rounded to broadly cuneate, apex acute; petiole-like base and tubular sheath 2-3 cm. Peduncle pale grayish green, 12-20 cm, pubescent, with 2 or 3 sterile bracts; rachis 6-11 cm, subdensely many flowered, secund to cylindric; floral bracts lanceolate, ca. 17 × 5 mm, pubescent, apex acuminate. Flowers barely opening, pale greenish white or white, medium-sized; pedicel and ovary cylindric-fusiform, ca. 10 mm, pubescent. Sepals pubescent on outer surface, 1-veined; dorsal sepal elliptic, ca. 14 × 4.5 mm, concave, apex acute; lateral sepals ovate, oblique, 11-13 × ca. 5 mm, apex acute. Petals rhombic, oblique, ca. 13 × 4.5 mm, 1-veined, apex obtuse; lip ovate, ca. 9 × 4 mm; hypochile concave-saccate, inside papillose; epichile ligulate, cymbiform, 3-4.5 mm, apex acute, not recurved. Column ca. 3 mm; anther narrowly ovoid, ca. 4 mm, apex acuminate; pollinia ca. 1.5 mm; rostellum erect, ca. 5 mm, remnant deeply bifid. Fl. Sep-Oct.
Home