DISTRIBUTIONThe species is known to have occurrence records in these countries.
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DESCRIPTION Rhizome 1.8—3 mm diam., sections between pseudobulbs 0.6—0.8 cm long. Pseudobulbs ± touching, ovoid, 0.7—1.5 x 0.5—0.8 cm. Petiole 1.4—2.6 cm. Leaf blade elliptic to ovate, 5.8—12 x 1.5—3.2 cm. index (length/width) 2.6—4.7; (sub-)acute. Inflorescence an elongated, rather lax raceme, 16—33 cm, 21—44-flowered. Peduncle erect to patent, 11.5—19 cm, bracts c. 5, the longest 6—8 mm long.
Rhachis nodding, not thickened 5—14.5 cm, glabrous. Floral bracts triangular, 1.5—3 x 0.8—1.2 mm, acute. Flowers opening wide, several simultaneously, anthesis from the top of the rhachis downwards. Pedicel and ovary 7.5—14 mm long, basal node on a 0.4—1 mm-long stump. Median sepal porrect to recurved, elliptic, 6.5—9 x 2—2.2 mm, index 3.2—4.1; acute to acuminate, margins ciliate, base rather narrowly attached; thin, surface glabrous. Lateral sepals recurved or spreading, ovate-triangular, 6.5—9 x 2.5—2.6 mm, index 2.6—3.6; margins glabrous, base broadly attached; otherwise as the median sepal. Petals porrect, ovate, 2.5—3.2 x 0.6—1 mm, index 3—4.6; acute, margins ciliate. base broadly attached; thin, surface glabrous. Lip curved near the base, obscurely 3-lobed; midlobe ovate, 5—7 x 1.2—2.2 mm, index 2.7—4.2; rounded to obtuse, margins distally ciliate, otherwise with long, thin, straight or slightly wavy hairs; rather thin with a thick base, surface glabrous: adaxially concave near the base and with a median slit reaching up to 1/3 of the lip, with two obtuse ridges diverging proximally towards the distal end of the lateral lobes, distally fused to a single median ridge and continuing over c. 1/3 of the lip, surface otherwise slightly concave; abaxially with a wide, retuse ridge near the base; lateral lobes attached along the proximal 1/6 of the lip, erect, semi-circular, margins ciliate, broadly attached, rather thick, adaxially pubescent towards the margins, abaxially glabrous. Column 1.2—1.5 mm long, stigma with a distinct, deeply bifid callus at the base. Stelidia semi-elliptic, c. 0.5 mm long, tip acute, margins distally slightly erose. Anther: front margin deeply bifid, papillose, abaxial surface distally papillose. Colours: Rhachis brownish purple. Pedicel and ovary green. Sepals and petals pale (yellowish) green. Lip dark purplish brown, or ?yellowish. |