Erythrorchis Blume,
Rumphia 1 (1835) 200. t. 70
Leafless, apparently monopodial terrestrial climbing plants lacking chlorophyll. Stems much elongated, with both a short scale-leaf and a root at each internode. Inflorescences lateral, branching; rachis and flowers glabrous. Flowers rather small, resupinate, yellowish. Sepals free. Petals free. Lip without spur, not mobile, cup-shaped. Column-foot absent. Pollinia 2, solid, caudicles absent, stipe absent, viscidium absent. Seeds winged.
Distribution
Tropical continental East Asia, Japan, Indonesia, Philippines, Australia; about 5 species.
Distribution in the Philippines
One species [Erythrorchis altissima (Blume) Blume].
Habitat
Terrestrial in lowland forests.
Notes
A leafless and achlorophyllous climber, related to Galeola, but with glabrous stems and more thin-textured flowers.