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Genoplesium rhyoliticum D.L.Jones
Family Orchidaceae
Genoplesium rhyoliticum D.L.Jones APNI*

Synonyms: Corunastylis rhyolitica (D.L.Jones) D.L.Jones & M.A.Clem. APNI*

Description: Terrestrial herb 10–18 cm high.

Inflorescence dense, 2–4 cm long, 5–20-flowered.

Flowers c. 4 mm across, semi-erect, dark purplish black. Dorsal sepal narrow-ovate, c. 4.5 mm long, c. 2 mm wide, striped, margins entire. Lateral sepals linear to lanceolate, c. 5 mm long, c. 1 mm wide, not gibbous at the base, parallel or slightly divergent. Petals narrow-ovate, c. 4 mm long, c. 1 mm wide, striped, margins entire. Labellum obovate, c. 3.5 mm long, c. 1.7 mm wide, margins with numerous, coarse, spreading cilia to 0.5 mm long; callus narrow-triangular, extending to the labellum apex.

Flowering: December–January

Distribution and occurrence: Grows under shrubs; rare and known only from a rhyolite outcrop near Pambula.
NSW subdivisions: SC

Threatened species: NSW BCA: Endangered; Commonwealth EPBC: Endangered
AVH map***

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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