Thelymitra luteocilium
W.Fitzg. Fringed Sun-orchidFlowering stem slender, erect, 13–35 cm long, 1.5–3 mm diam., almost wholly purplish. Leaf linear-lanceolate, 6–22 cm long, 2–8 mm wide, fleshy, canaliculate, dark green. Inflorescence (1–)2–4(–6)-flowered. Sterile bracts 2. Perianth segments ovate, 7–10 mm long, pale pink to reddish. Column 4–5 mm long, pink to reddish; mid-lobe short with a convex, crenate margin, not prominently hooded, yellow, subtended by a narrow dark band; lateral lobes suberect, short, flat, margins and apices bearing relatively stout, spreading and erect, yellow hairs, terminal hair-tuft reaching mid-lobe. Anther with a pointed beak protruding between bases of lateral lobes. Flowers Sep.–Oct.
LoM, Wim, VVP, Gold, CVU, GGr, DunT. Also SA. Scattered and rare in Victoria, often in moist depressions. Flowers Sep.-Oct. Grows among low shrubs in open forest, mallee scrub or in open rocky sites in well-drained and moisture-retentive soils.
Flowers open tardily, only on hot and humid days.
Believed to hybridise with T. megcalyptra to produce T. ×chasmogama.
Weber, J.Z.; Entwisle, T.J. (1994). Thelymitra. In: Walsh, N.G.; Entwisle, T.J., Flora of Victoria Vol. 2, Ferns and Allied Plants, Conifers and Monocotyledons, pp. 840–854. Inkata Press, Melbourne.