Root-Flower Bulb-Leaf Orchid is a tree-dwelling orchid
with creeping rhizomes, 1-1.5 mm thick. Pseudobulbs are cylindric to
narrowly ovoid, 1-2 x 0.5-0.8 cm, longitudinally grooved, placed
1.5-5.0 cm apart on rhizome. Leaf is single, oblong-ovate, borne on the
tip of the pseudobulb, 1.5-4.0 x 0.8-1.3 cm, shortly stalked, tip
minutely two lobed or flat. Flowering stem is erect or stout, arising
from base of pseudobulbs or from nodes of rhizome, shorter than
pseudobulbs, 410 mm long, flower-cluster-stalk erect, with tubular
sheaths. Inflorescence is raceme-like, usually 2-flowered or sometimes
3-flowered. Flowers are 5-7 mm across, not so widely open, light
yellowish; floral bract ovate-triangular, 4-5 x 3-4 mm long, tapering,
longer than flower-stalk and ovary; flower-stalk plus ovary 2.53.0 mm
long. Dorsal sepal is narrowly lanceshaped, twisted, 6-8 x 1.4-1.5 mm,
tapering at tip; lateral sepals narrowly lanceshaped, 8-10 x 1.4-1.5
mm, tapering; petals are much smaller than sepals, ovate, 1.6-2.1 x
0.9-1.1 mm, pointed at tip; lip oblong or tongue shaped, slightly
recurved, 1.5-2.5 x 0.9-1.1 mm, entire, pale yellowish, fleshy, with
two ridges along a median furrow, blunt at tip. Column is 1-1.4 mm
long. Root-Flower Bulb-Leaf Orchid is found growing on branches of
medium sized trees in sub-tropical areas at 1100 to 1270 m altitudes,
in NE India and China. Flowering:April-May.