Pterostylis truncata
W.Fitzg. Brittle GreenhoodFlowering plant to 15 cm tall, stem leaves 2–5, closely sheathing. Rosette leaves 2–6, ovate to lanceolate, 1.5–3 cm long. 0.8–1.8 cm wide, petiolate, entire. Flower 3.5–4.5 cm long, semi-erect, white with green and brown stripes and suffusions; dorsal sepal acuminate, decurved near the apex; petal margins decurved; lateral sepals erect, tightly embracing the galea, sinus deeply v-shaped, slightly mounded to nearly flat when viewed from the side, free points 2.5–3 cm long, filiform, widely divergent, held obliquely forwards. Labellum narrowly ovate-lanceolate, 14–18 mm long, 3.5–4 mm wide, apex acute to subacute, red-brown, shallowly curved, distal quarter to third protruding from the sinus in the set position. Flowers Feb.–Jul.
VVP, GipP, OtP, Gold, CVU, HSF, HNF. Also NSW, ACT. Restricted to south central Victoria, within 100 km of Melbourne, in basalt plains grasslands and woodlands or granite outcrops, on well-drained soils.
This species is regarded as endangered in Victoria due to massive habitat loss and degradation.
Jones, D.L. (1994). Pterostylis. In: Walsh, N.G.; Entwisle, T.J., Flora of Victoria Vol. 2, Ferns and Allied Plants, Conifers and Monocotyledons, pp. 798–830. Inkata Press, Melbourne.