slender; leaves dimorphic, uniformly green, numerous, spread- ing, obsoletely 3-nerved, the midrib depressed above, some of them elliptic, 9-10 mm. long, about 4.5 mm. wide, acute to subacute, others linear-oblong, 16-20 mm. long, 3.5-4 mm. wide, the bracts ovate, small; flowers 2-4, on an abbreviated axis, pale yellowish green, partially open; sepals narrowly ob- long, 2-2.5 mm. long, obtuse; petals broadly elliptic, about 2 mm. long; lip whitish, saccate, the limb reniform, ciliate; column short.-

Kyushu (Yakushima); very rare.

Japan Red List (2000)

It is an epiphytic orchid that grows on the trunks of evergreen broad-leaved trees. The stem is thin and the leaves are arranged alternately. There are two types of leaves, one elliptical in shape and 9-10mm in length, and the other linear-elliptical in shape and 16-20mm in length. The inflorescence bears 2-4 pale green flowers in a raceme. The lip is white and strap-shaped with a saccate base and a reniform, concave apex.

It has been collected a few times in Yakushima. It is extremely rare, and recent surveys have not been able to confirm its presence. It is believed that the species experienced a significant decline during the period of deforestation of the primary forests on the island.