Growth form Epiphyte, up to 80 cm high. Rhizome not seen. Roots filiform, long, flexible, glabrous. Stem strongly branched, elongated, compressed, completely covered by leaf sheaths, internodes 3-3.5 cm long. Leaf linear-lanceolate, narrowed towards apex, above longitudinally-grooved, coriaceous; apex unequally 2-lobed, both lobes obtuse; lamina 6.5-13.5 cm long, 0.85-1.75 cm wide; sheath tubular, transversely warty, punctate; apex toothed, with bristled margin. Inflorescences terminal, sessile, nodding, densely capitate, 20-flowered, when dried 2.5 cm in diameter, when young enveloped by a spathe. Spathe obovate, obtuse, 1-1.5 cm long, 0.65 cm wide; floral bracts lanceolate, apex obtuse, 1.3 cm long, 0.32 cm wide. Flowers upright, glabrous. Median sepal oblong, concave, 5-nerved, 0.88 cm long, 0.3 cm wide, apex acute, apiculate. Lateral sepals in front deeply saccate-connate, clasping the spur, in total 0.75 cm long, free part strongly falcate-incurved, broadly triangular, concave, 5-nerved, 0.25 cm long, 0.3 cm wide, apex obtuse, conical-apiculate, Petal oblong, sub-oblique, concave, 3-nerved, 0.9 cm long, 0.3 cm wide, apex obtuse, conical-apiculate. Lip at base adnate to the column, entire, recurved, quadrate, 0.27 cm long, 0.24 cm wide; epichile rounded, with small longitudinal indistinct rib, thickened; hypochile spurred; spur ventricose-saccate, apex rounded-truncate, 0.23 cm long, 0.26 cm wide. Column sub-curved, apex strongly dilated, with 3 small ribs, ribs decurrent on the filament and auricles, 0.2 cm long; clinandrium dentate; stelidia triangular, acute. Anther cucullate, obliquely conical, at base and apex emarginate; rostellum very broad, broadly retuse; stigma transverse, lower margin strongly produced, rounded-triangular, surpassing the rostellum; pollinia 4, pear-shaped, geminate, inside flat; viscidium absent. Ovary 6-grooved, 0.75 cm long. Capsule not seen.
Distribution – Indonesia
Habitat and Ecology - Epiphyte in lowland forest. Altitude 70 m. Flowering in August in the wild.
Notes - 1. Flower colors not recorded.
2. The epithet dentifera refers to the toothed leaf spathe of the species (denti- means teeth and -fera means bearing in Latin).
3. Specimen observed: Versteeg 1573.