Glomera umbrosa (P. Royen) J.M.H. Shaw,
Growth form Terrestrial, erect, bushy, sometimes branched, up to 30 cm long. Rhizome 2-3 mm in diameter. Root filiform, flexible, glabrous, ca. 5 cm long. Stem branched, slender, flexuose, glabrous, proliferously leafed, internodes 0.4-1.5 cm long. Leaf linear, slightly ovate-linear or spathulate-linear, erect-patent, glabrous, coriaceous, carnose, midrib 2, narrowly crested above, not visible below, lateral nerves 3 on either side but hardly visible on either side, 7-nerved, margin incurved; apex obtuse; lamina 0.5-1.2 cm long, 0.1 cm wide; sheath tight, tubular, with transverse warts mainly in apical part of leaf-opposed side in young leaves, but in older leaves warts more rounded or obsolete, widening towards tip, ribbed; apex toothed, with bristled margin, bristles brown, 0.05 cm long. Inflorescences terminal, one-flowered, when young enveloped by a spathe. Spathe obovoid, obliquely truncate, transparent, glabrous, 3-nerved, with brown dots, 0.6 cm long, 0.4 cm wide, apex 2-lobed, each lobe obtuse; floral bracts obovoid, thin, transparent, glabrous, 1-nerved, apex apiculate. Flower up-side-down, finely papillate on outside. Median sepal obovate-elliptic, glabrous, 3-nerved at base, 5-nerved in higher parts, 0.55 cm long, 0.15-0.22 cm wide; apex acute. Lateral sepal obliquely oblong-ovate, glabrous, 3-nerved at base, 4-5 nerved in higher parts, 0.5 cm long, 0.2 cm wide; apex obtuse, conoid-apiculate; base free, obliquely oblong-ovate widened. Petals oblanceolate, with silver dots, 0.7 cm long, 0.3 cm wide, 3-nerved at base, 5-nerved in higher parts; apex subacuminate. Lip narrowly ovate, adnate to the base of the column, with silver spot, 0.3 cm long, 0.3 cm wide; epichile 3-lobed, mid-lobe acute, with brown glands in an apical lens-shaped area near tip, 6-9 nerved; hypochile 3-nerved at base, spurred; spur clavate, glabrous, 0.3-0.4 cm long, apex slightly compressed, retuse. Column curved, without column foot, 0.2 cm long, 0.1 cm wide; clinandrium bidentate. Anther cucullate, 2-lobed at either end, connective at base umbonate, 0.1-0.15 cm long, 0.1 cm wide; pollinia 4, pear-shaped, 0.06 cm long. Ovary clavate, glabrous, indistinctly and broadly 4-6-ribbed, 0.3-0.4 cm long. Capsule not seen.
Habitat and Ecology – Terrestrial in upper montane forest on rocks of limestone along lake Habbema. Altitude 3300 m. Flowering time unknown.
Notes - 1. Flowers white.
2. The epithet umbrosa refers to the shady places under rocks where the type specimen was collected.
3. Specimen observed: L0061283.