Glossorhyncha minutigibba (J.J.Sm.) P.Royen, Folia Geobot. Phytotax. 9: 83 (1974).
Growth form Epiphyte, up to 34 cm high. Rhizome not seen. Roots filiform, flexible, glabrous. Stem long, branched, slender, subcylindrical, rooting in basal part, 0.1 cm in diameter, proliferously leafed, completely covered by leaf sheaths, internodes up to 0.85 cm long. Leaf lanceolate-linear, erect-patent, obtusely channeled above, convex below, carnose, slightly constricted below the apex; apex oblique, one side very long and obtuse, other side very short, indistinctly tooth-like; base shortly petiolate-contracted; lamina 1.5-2.1 cm long, 0.2 cm wide; sheath tubular, tight, surpassing internodes, in cross section elliptic, in apical part with prominent vein, transversely warty; apex toothed, with bristled margin, bristles appressed, crisped, 0.13 cm wide. Inflorescences terminal, one-flowered, when young enveloped by a spathe. Spathe tubular, split beyond the middle, apex obtuse, apiculate, dorsally keeled near apex, nerves prominent outside, punctate, membranous, 0.65 cm long; floral bracts transparent, thin, strongly punctate, 0.56 cm long. Flowers upright, glabrous. Median sepal lanceolate, apex obtuse, apiculate, 3-nerved, 0.8 cm long, 0.2 cm wide. Lateral sepals obliquely lanceolate, sub falcate, base shortly fused, apex obtuse, subulate-apiculate, front margin at base shortly rounded-dilated, 0.7 cm long, 0.2 cm wide. Petal obliquely spathulate, 3-nerved, 0.77 cm long, claw linear, 0.33 cm long, 0.1 cm wide, blade broadly elliptic, obtuse, 0.47 cm long, 0.33 cm wide. Lip base adnate to the column, concave, broadly triangular, apex slightly contracted, narrowly obtuse, 0.33 cm long, free part 0.3 cm long, 0.33 cm wide; epichile indistinctly 3-lobed, recurved, 0.36 cm long, lateral lobes broadly rounded, mid lobe triangular; hypochile spurred; spur pointing backwards, making acute angle with ovary, apex recurved, in front convex, dorsally concave, obtuse, 0.18 cm long. Column basal half adnate to the lip, obtusely curved, apex recurved, sigmoid, dorsally convex, 0.2 cm long; clinandrium deeply hollow, triangular, dorsal margin triangular, finely erose; stelidia triangular. Anther cucullate, 0.1 cm wide, at base truncate, in outline orbicular-ovate, apex produced into a conspicuous, obtusely and weakly recurved, broadly triangular, obtuse projection, thecae convex, separated by a small channel, connective tall but narrow hump, dorsally channelled; pollinia 4, obovate, outside convex, inside flat with longitudinal groove; rostellum broadly truncate; stigma prominent, lower margin elongated, recurved, orbicular; viscidium not seen. Ovary cylindrical, 3-grooved, glabrous, 0.53 cm long. Capsule not seen.
Distribution – Indonesia.
Habitat and Ecology - Epiphyte in upper montane forest. Altitude 1800 m. Flowering in July in the wild.
Notes - 1. Flowers white with black lip tip.
2. The epithet minutigibba refers to small hump on the anther of the species (minuti- means small and –gibba means hump in Latin).
3. Specimen observed: Doorman 28.