Bulbophyllum eutoreton J.J.Verm., Nordic J. Bot. 26 (2008) 189, fig. 32
Type: Leiden cult. 20030734 (de Vogel & Vogel) (holo L), from PNG, Central Prov.
Roots sprouting near the base of the rhizome, growing backwards along it until reaching the substrate. Rhizome up to 40 cm long, c. 3 mm in diameter, sections between pseudobulbs 0.4-0.6 cm long, erect to patent, bracts not persistent. Pseudobulbs 2.2-3 by c. 0.3 cm, porrect, distant, cylindrical, the new shoot arising 3-5 mm from the top of the pseudobulb. Leaves: petiole 0.2-0.3 cm long; blade elliptic, 5.2-5.7 by 1.3-1.5 cm, index (length/width) 3.4-4.1, subacute. Inflorescence c. 2 cm long, 1-flowered; peduncle c. 0.7 cm long, porrect; non-floriferous bracts 2, the longest c. 5 mm long; floral bract c. 3.2 mm long, tubular, acute. Flowers moderately opening. Pedicel-with-ovary c. 7 mm long, basal node on a c. 2.4 mm long stump. Dorsal sepal c. 9 by 4 mm, index 2.2-2.3, including a cuspidate tip, recurved, ovate, margins finely papillose, base rather broadly attached, rather thin, surface glabrous. Lateral sepals c. 11 by 4 mm, index 2.7-2.8, free, upper margin glabrous, lower with scattered, very fine papillae, base rather narrowly attached, otherwise as the dorsal sepal. Petals c. 2.3 by 1.5 mm, index c. 1.5, porrect, ovate-triangular, obtuse, margins finely papillose, base narrowly attached, rather thin, surface about glabrous. Lip c. 4 by 2 mm, index c. 2, only slightly recurved, elliptic, obtuse, margins slightly finely papillose proximally, otherwise glabrous, rather thick, surface glabrous; adaxially somewhat concave proximally, with two distally slightly converging ridges close to the mid-nerve at over two fifths of the length of the lip and with a flat, elliptic median callus in between; abaxially convex proximally, slightly convex distally. Column c. 1.2 mm long; stigma more or less orbicular, without keels inside, with a very slight median thickening well below its proximal margin; foot somewhat widened and with reflexed, rounded lateral teeth just above the ligament; stelidia very short and abruptly bent upwards at their base, acute, with a porrect, deltoid, more or less acute edge along the lower margin, at the level of the rostellum; rostellum protruding; anther-cap abaxially with a distinct, flat crest, surface colliculate, front margin drawn out into a deltoid beak; pollinia 2, obovoid, somewhat flattened; no appendages. (After Vermeulen, 2008)