Pterostylis loganii (D.L.Jones) G.N.Backh. APNI* Synonyms: Bunochilus loganii D.L.Jones APNI*
Description: Terrestrial herb
Rosette stalk 20–60 mm long; leaves 3 to 6, narrow lanceolate, 10–30 mm long by 2–5 mm wide, margins entire and plane or crinkled; petioles to 3 mm long.
Flowering plants 15–50 cm tall, stem leaves 5 to 7, linear-lanceolate 10–60 mm long by 3–7 mm wide. Flowers 1–9, porrect, remote, 10–15 mm long by 5.0–6.5 mm wide, translucent pale green with darker green stripes, nitid; sepal tips brown. Dorsal sepal 12–16 mm long when flattened, shallowly curved. Synsepalum elliptical, 9–12 mm long by 5.0–6.5 mm wide, flat, notched to 3–4 mm deep; margins curved, tips divergent to 3–4 mm apart. Petals obliquely oblong, narrow at base where c. 0.8 mm wide, 11–13 mm long by 2.5–3.0 mm wide; anterior margin straight or shallowly curved, basal flanges narrow and elongate. Labellum oblong to oblong-obovate, 5.0–6.0 mm long by 2.5 mm wide, tawny or buff brown with a black basal mound and central stripe; surface cells mostly round and bead-like, a few acicular cells to 0.3 mm long toward the base; basal mound prominent, erect, obtuse; margins parallel or flaring slightly toward apex, lateral lobes well-developed, rounded; midlobe 0.5–0.8 mm long, shortly notched, the lobes obtuse to acute; apex upcurved.
Flowering: August–October
Distribution and occurrence: North-eastern Victoria and New South Wales in theSouth Western Slopes and Southern Tablelands north to Morton National Park, between 250–500 m elevation. Open sclerophyll forest, among shrubs and tussocks.
NSW subdivisions: ST, SWS
Other Australian states: Vic.
Text by Matt A.M. Renner (12 Dec 2019) based on Jones (2006) Taxon concept: Jones DL (2006) Towards a revision of Bunochilus D.L.Jones & M.A.Clem. Australian Orchid Research 5: 112–142. Backhouse GN (2007) A new name in the terrestrial orchid genus Pterostylis R.Br. (Orchidaceae) for Victoria. The Victorian Naturalist 124(6): 341.
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