Lurh Bulb-Leaf Orchid is a tree-dwelling orchid with
pseudobulbs ovoid, 1.0-1.5 cm long, 1.7-1.9 cm wide, green to
yellowish-green, with smooth surface in young stage, wrinkled when
mature, placed on the top of rhizome, 1-4 cm apart, bearing two leaves
at tip. It is named for Prof. Gopal Singh Rawat, formerly at Wildlife
Institute of India. Leaves are 2, inverted-lanceshaped, 5.5-7.0 cm
long, about 0.9-1.2 cm wide, blunt at tip, stalkless, leathery,
deciduous, absent during flowering. Flowers do not open fully, are
0.9-1.1 x 1.2-1.4 cm wide, upside down, not-one-sided, hairless, sepals
and petals pale yellowish-white, lip dark yellow; dorsal sepal
lanceshaped, 7.5-8.0 mm long, up to 2.0 mm wide, pointed; lateral
sepals obliquely lanceshaped, 8.0-8.5 mm long, 2.0 mm wide, pointed.
Petals are obliquely lanceshaped, slightly curved downwards, 3.0-3.5 mm
long, 1.0-1.3 mm wide, pointed, slightly tapering and fleshy towards
tip. Lip is ovate, without side lobes, 3.3-3.4 mm long, 1.2-1.3 mm
wide, blunt, fleshy, slightly grooved along the length towards the
base; column short, stout, 1.3-1.5 mm long, 1.5-1.6 mm wide. Flower
clusters arise from the base of pseudobulbs, 8-12 cm long;
flower-cluster-stalk 4-5 cm long, 0.8-0.9 mm wide, round, bearing up to
two sterile bracts; sterile bracts ovate, 4.0-5.5 mm long, blunt,
rounded at tip, semi-transparent, bearing up to 35 densely placed
flowers in the upper 2/3rd of its length. Flower-stalk and ovary are
club-shaped; flower-stalk round, 3.0-3.5 mm long, 0.4-0.6 mm wide, dark
green; ovary club-shaped, with ribbed surface, 2.0-2.5 mm long, 1.0-1.4
mm wide, yellowish-green. Lurh Bulb-Leaf Orchid is known only from
Mizoram at altitudes of 1600-1800 m. Flowering: March-April.
Identification credit: Pankaj Kumar
Photographed at Lurh Tlang, Champhai District, Mizoram.
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The flower labeled Lurh Bulb-Leaf Orchid is ...