Japan Flora: Pale green, glabrous, delicate, leafless herb, with tuberous rhizomes 2-3 mm. in diameter; stems 5-10 cm. long, simple, the basal scales small, the median one ovate, 3-5 mm. long, acuminate, spreading, nerveless; flowers 2 or 3, pale purplish green, loosely racemose, the bracts similar to the median cauline scale; sepals linear, membranous, obtuse, 1-nerved, scattered-ciliate near the base, the dorsal sepal 4 mm. long, the lateral ones 2.5 mm. long; petals linear, acute, about 35 mm. long; lip rounded, about 4 mm. long, with obsolete teeth on upper margin, the appendage about half as long as the lip, lanceolate and deeply bifid; column erect, about 3.5 mm. long, 2-toothcd; ovary pedicelled, 5-7 mm. long. Aug.-Oct. Woods in mountains;