Habenaria harmsiana Schltr.

A terrestrial herb 3–7 dm. high, glabrous except for the roots.. Tubers elongate-ovoid or ellipsoid, 2–4 cm. long, 1–1.5 cm. in diameter, densely tomentose.. Stem erect, usually rather slender, leafy throughout its length.. Leaves 7–12, the lowermost 1 or 2 reduced to sheaths, the remainder sub-erect, lanceolate to narrowly lanceolate, acute, the largest 7–12 cm. long and 1.5–3 cm. broad, the upper ones decreasing in size up the stem and similar to the bracts.. Inflorescence 5–16 cm. long, 8–12 cm. in diameter, rather loosely 5–15(rarely –25)-flowered.. Bracts leafy, lanceolate, acute, 1.5–5 cm. long, usually much shorter than the pedicel with ovary.. Flowers spreading or somewhat curved upwards, white and pale green, fragrant; pedicel with ovary curved, very slender, 4.5–7 cm. long.. Dorsal sepal erect, very convex, elliptical, shortly acuminate, 12–16 mm. long, 6–8 mm. broad; laterals deflexed, rolled up lengthwise, very obliquely obovate with the apex lateral, 14–20 mm. long, 10–14 mm. broad.. Petals bipartite from a broad triangular papillose base 5–6 mm. long; posterior (upper) lobe filiform or very narrowly linear, 7–10 mm. long, scarcely 0.5 mm. broad; anterior lobe curving upwards like a horn, fleshy, tapering from a broad base up to 4 mm. broad, 2.5–3.5 cm. long.. Lip projecting forwards, tripartite from a short undivided part ± 1 mm. long; middle lobe ± incurved, linear, 2.3–3 cm. long; side lobes similar but more pointed, tapering, 1.4–1.9 cm. long; all lobes ± 1mm. broad.. Spur hanging or projecting outwards, slender but much swollen in the apical fifth or sixth, 4–7 cm. long.. Anther erect, 5–6.5 mm. high, canals porrect with the apices upcurved, very slender, 1.4–1.9 cm. long.. Stigmas porrect, very slender with abruptly swollen and truncate apices, 1.2–1.8 cm. long.. Rostellum narrowly triangular, acute, ± 3 mm. long.