Common name: Mallee Midge Orchid
Genoplesium nigricans (R.Br.) D.L.Jones & M.A.Clem. APNI* Synonyms: Prasophyllum horburyanum Rupp APNI*
Corunastylis nigricans (R.Br.) D.L.Jones & M.A.Clem. APNI*
Prasophyllum nigricans R.Br. APNI*
Prasophyllum fuscoviride Reader APNI*
Description: Terrestrial herb 10–20 cm high.
Inflorescence dense, 1–3 cm long, 12–45-flowered.
Flowers c. 3 mm across, nodding, green with a dark purplish black labellum. Dorsal sepal broad-ovate, 4–4.5 mm long, c. 4 mm wide. Lateral sepals linear to lanceolate, 2.8–3.5 mm long, c. 1 mm wide, gibbous at the base, parallel or slightly divergent. Petals ovate, 1.7–2 mm long, c. 0.8 mm wide, margins entire. Labellum ovate to obovate, c. 2 mm long, c. 1 mm wide, apex obtuse, margins entire or minutely toothed; callus narrow-oblong to narrow-ovate to lanceolate, extending nearly to the labellum apex.
Flowering: March–May.
Distribution and occurrence: Grows in mallee scrubland and Callitris woodland; south from Griffith.
NSW subdivisions: CC, SWP
Other Australian states: Vic. W.A. S.A.
Text by D. L. Jones
Taxon concept: Flora of NSW 4 (1993)
APNI* Provides a link to the Australian Plant Name Index (hosted by the Australian National Botanic Gardens) for comprehensive bibliographic data
***The AVH map option provides a detailed interactive Australia wide distribution map drawn from collections held by all major Australian herbaria participating in the Australian Virtual Herbarium project.
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