Corybas amungwiwensis P.Royen, Alp. Fl. New Guinea 2 (1979) 77, fig. 45
Type: Royen, van 11111 (holo BISH)
- Calcearia amungwiwensis (P.Royen) M.A.Clem. & D.L.Jones, Orchadian 13 (2002) 443
- Type: Royen, van 11111 (holo BISH)
Small, 4.5-7 cm high terrestrial. Tuber globose, 0.45-0.5 cm across. Stem 2.5-3.8 cm long, glabrous. Cataphyll cylindrical, 0.7-0.8 cm long, aristate, glabrous. Leaves ovate-cordate, 0.9-1 by 0.7-0.75 cm, aristate, at the base subcordate, 3-nerved at the base, cross-veins 5-6 on either side of the mid-rib, all nerves not visible above, on underside visible only by the different colour. Floral bract linear, boat-shaped, 1-1.1 cm long, subulate in apical part, glabrous. Ovary narrowly cylindrical, curved, 0.7-0.8 by 0.1-0.15 cm, 6-grooved, glabrous. Median sepal boat-shaped, spathulate, 2.2-2.3 by 0.5-0.6 cm, apical part slightly hooded, tip curved upward, acuminate, 3-nerved at the base, 5-nerved in apical part, margin slightly erose in apical part only, glabrous. Lateral sepals linear, 1.2-1.4 cm long. Petals linear, 3.6-3.8 cm long. Lip from a tubular, 0.6-0.8 cm long basal part abruptly curved downward and spreading into an orbicular, 1-1.2 cm wide blade, tip retuse, 3-nerved at the base, 15-nerved near margin, on inside rather densely hispidulous; spurs narrowly conoid, 0.25-0.3 cm long, obtuse. Capsule not seen. (After Van Royen, 1983).