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Diuris platichila Fitzg.
Family Orchidaceae
Diuris platichila Fitzg. APNI*

Synonyms: Diuris flavopurpurea Messmer APNI*
Diuris lineata Messmer APNI*

Description: Terrestrial herb.

Leaves 2, linear, c. 35 cm long, c. 6 mm wide, conduplicate.

Raceme c. 60 cm high, 2–8-flowered. Flowers yellow with dark markings on the labellum and dorsal sepal, c. 1.5 c. across. Dorsal sepal ovate, c. 8 mm long, c. 5 mm wide, erect. Lateral sepals linear, c. 16 mm long, deflexed, crossed. Petals divergent; lamina ovate; claw dark-coloured. Labellum c. 8 mm long; lateral lobes linear, c. 6 mm long, c. 1 mm wide, margins irregular; midlobe obcuneate when flattened, c. 7.5 mm wide, ridged along midline; callus of 2 parallel ridges c. 4 mm long.

Flowering: October

Distribution and occurrence: Grows among grass in sclerophyll forest, apparently restricted to the Blue Mtns.
NSW subdivisions: CC, CT, CWS
AVH map***

Hybridizes with D. lanceolata (producing D. X polymorpha Messmer). In recent years plants of this species from Duffy's Forest, Mount White and Kulnura has been misidentified as Diuris bracteata. [Peter Weston May 2013]

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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