Genoplesium clivicola (D.L.Jones) J.M.H.Shaw APNI*
Synonyms: Genoplesium clivicolum ined. APNI*
Corunastylis clivicola D.L.Jones APNI*
Description: Terrestrial tuberous herb.
Leaf terete, 8–18 cm long by 1–2 mm wide, base reddish, free lamina linear-lanceolate, 12–20 mm long by 1.5–2.5 mm wide, closely sheathing the scape, ending 10–30 mm below the first flower.
Inflorescence 12–25 cm tall, bearing 5–30 flowers in a moderately crowded spike 10–35 mm long. Floral bracts elliptic-ovate, 2 mm long by 1.5 mm wide, apiculate, closely sheathing. Ovary asymmetrically arcuate, 2.3 mm long. Flowers nodding, c. 3.5 mm wide dark purple and green, without discernable scent. Dorsal sepal broadly elliptic, widest at mid-point, truncate at base and tapered slightly to an acuminate apex, 3.5–4.0 mm long by 2.5 mm wide, concave, greensih with red-purple marginal bands; margins entire. Lateral sepals erect-spreading, divergent, linear-lanceolate, slightly asymmetric, 4.5–5.0 mm long by 1.2–1.4 mm wide, margins toward apex inrolled, apex obtuse, with a small fusiform to obpyriform gland. Petals spreading, ovate-lanceolate, 2.5–2.8 mm long by 1.2 mm wide, greenish with dark purple stripes, margins entire, apex acuminate. Labellum hinged by a short claw, dark purple-black, obovate, 2.4–2.8 mm long by 1.2–1.5 mm wide, gradually and evenly broadening from the base toward the apex, then abruptly contracted and tapereing to a prominant acuminate apex, margins irregular, crenulate to erose, callus ligulate, narrowing from a broad base, sometimes broadening slightly toward the apex, surface papillose, ending before the labellum apex. Column 1.8 mm tall, 1.2 mm wide, blackish, foot ligulate, 0.5 mm long; column wings divided into two unequal lobes, sinus V-shaped, postical lobe triangular-falcate, apex acute, postical margins shortly ciliolate; antical lobe triangular, symmetrical, apex rounded to obtuse, margins entire. Anther 0.8 mm long with a filiform rostrum 0.3 mm long.
Flowering: Flowering recorded from February through to May.
Distribution and occurrence: New South Wales and ACT, between Bathurst and Tumbarumba.
On slopes and ridges of low hills in dry open Eucalpytus forest, in clay-loam soils, between 700-1000 m elevation.
NSW subdivisions: CT, ST
Genoplesium clivicola and G. rufum are similar, but G. clivicola differs by its dark-purple and green, rather than uniform pinkish to red flowers.
Text by Jones (2007), with modification by Matt. A.M. Renner (27 July 2020)
Taxon concept: Jones D.L. (2007) Two new species of Orchidaceae from the Australian Capital Territory and southern New South Wales. The Orchadian 15(7): 322-326.
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