Schizochilus sulphureus Schltr.

Slender terrestrial glabrous herb 5–18 cm. high.. Tubers ellipsoid, 1-2.5 cm. long, up to 1 cm. in diameter.. Stems somewhat flexuous, leafy in the lower part and bearing a few small bract-like leaves above.. Leaves 3–8, linear, narrowly lanceolate or lanceolate-ligulate, acute, up to 7 cm. long and 7 mm. broad.. Inflorescence densely up to 17-flowered, conical when young, cylindrical later, up to 5cm. long, ± 1cm. in diameter; bracts leafy, lanceolate, lower ones equalling or rarely longer than the flowers.. Flowers yellow; pedicel with ovary ± 5 mm. long.. Dorsal sepal narrowly elliptical, apiculate, ± 4–5 mm. long; laterals obliquely oblong-lanceolate, a little longer than the dorsal; all 3-nerved.. Petals obliquely rhombic-lanceolate, acute, 3–4 mm. long, 1-nerved.. Lip narrowly ovate, usually 3-lobed above the middle but rarely entire, 4.5–6 mm. long, just over 2 mm. broad; lateral lobes very short, triangular; middle lobe much longer, triangular, ± 1.5 mm. long; disk bearing a number of irregular verrucose thickenings just in front of the mouth of the spur.. Spur broadly rounded, ± 1 mm. long.. Column 1.5–2 mm. long, upper part somewhat recurved.. Fig. 7.