Bulbophyllum nemorale L.O.Williams, Bot. Mus. Leafl. 6 (1938) 100
Type: Wenzel 871 (holo AMES, ] 45575; iso K)
Rhizome 5-8 mm diam., sections between pseudobulbs 2-5 cm long. Pseudobulbs close to distant, ovoid, 1-1.3 by 0.8-1.5 cm. Petiole 7.5-17 cm. Leaf blade elliptic, 15-35 by 4.5-10.5 cm, index (length/width) 2.8-5; acute to acuminate. Inflorescence a lax to rather dense raceme, erect to patent, 21-49 cm. 13-40-flowered. Peduncle 9-32 cm; bracts 6-8, the longest 20 18 mm long. Rachis 9-19 cm. Floral bracts elliptic to ovate, 7-12 by 2-3.5 mm, acute to slightly acuminate. Flowers more or less secund. Pedicel and ovary 7-11 mm long. Median sepal ovate to triangular, 1317 by 2.4-4 mm. index 3.5-5.6; acute, margins entire; glabrous, base rather broadly attached; rather thin. Lateral sepals falcate, 13-15 by 4.2-5 mm, index 2.6-3.7, base broadly attached; otherwise as the median sepal. Petals porrect, falcate, basal half elliptic to obovate, top half linear, 11-14 by 1.5-3, index 4-7.3; acute, margins finely erose more or less half-way; glabrous; base rather broadly attached; rather thin with a thickened top part; with 3 veins,the laterals sometimes incomplete and not reaching the base. Lip recurved in the basal half, margins entire; glabrous or finely papillose locally; 3-lobed; midlobe more or less triangular, 4.2-4.8 by 2.2-3.8 mm, index 1.2-2.2; obtuse, rather thick; adaxially concave and with 2 knob-shaped ridges near the base, with 2 more distinct, obtuse ridges proximally diverging and running more or less parallel from about 1/3 to 2/3 of the length of the lip, the space in between channelled; abaxially with a retuse ridge up to about 1/2-2/3 of the length of the lip; lateral lobes attached along the proximal third of the lip, retrorse, ovate to semi-circular, 1.4-1.5 mm high, rounded, margins incurved, thin. Column 3-5 mm long. Stelidia subulate, 0.8-2.2 mm long, acute, with an antrorse, deltoid, obtuse tooth along the upper margin. (After Vermeulen, 2002)
Colours: Flower (pale) yellow with purple spots. Lip green.
Flowering time in the wild: May.
Distribution: Malesia (New Guinea, Philippines).
Distribution in New Guinea: Papua (Indonesia); Papua New Guinea; see map 96-1232M.jpg.