Japan Flora: Stems about 15 cm. long, ascending from a long-creeping base; leaves ovate,cm. long, 2-3.5 cm. wide, acute, rounded at base, with a white line along the midnerve, the petioles 1-1.5 cm. long inclusive of the short sheaths; spike short, densely many-flowered, slightly one-sided, short-pubescent, the scape with a few scales, about 5 cm. long; bracts linear-lanceolate, acuminate, 6-12 mm. long, ciliate, longer than the ovary, embracing the lower part; flowers small, white changing to yellow; sepals ovate, about 4 mm. long, obtuse, the dorsal sepal ovate, the lateral sepals narrowly oblong-ovate, slightly greenish; petals forming a hood with the dorsal sepal, white, oblanceolate; lip broadly ovate, rather obtuse, as long as the sepals, saccate- dilated at base, pale yellow, pubescent within; column short, about 2/3 as long as the sepals; rostellum short, bifid; pollinia bilobed in each locule; ovary about 6 mm. long, glabrous. Scpt.-Oct. Woods in mountains;

Honshu (Hachijo); rare.

var. yakushimensis (Nakai) Ohwi. Leaves ovate to oblong-ovate, with white spots along the midnerve, the bracts pubes-cent below. Woods in mountains; Kyushu (Yakushima and Tanegashima); rather rare.

var. leuconeura (F. Maekawa) Ohwi Leaves with white nerves, the margins undulate; spur and limb of the lip slender. Woods in mountains; Kyushu (Yakushima and Tanegashima).

var. matsumurana (Schltr.) Ohwi. Slightly larger than the preceding varieties; leaves broader, sometimes subcordatc, 4-6 cm. long, 2-3 cm. wide, white-reticulate on upper side along the nerves and vein- lets, the bracts lanceolate. Kyushu (Yakushima and Tanegashima); rare. Ryukyus and Formosa.