Diuris cruenta D.L.Jones & C.J.French

Jones, D.L. & French, C.J. (2016), Three new species in the Diuris corymbosa Lindley complex (Orchidaceae) from Western Australia. Australian Orchid Review 81(4): 32-34

Nomenclature

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Jones, D.L. (January 2021), Native Orchids of Australia Edn. 3: 251
 APC
common name: Kermerton [sic; Kemerton] Donkey Orchid
  Jones, D.L. (January 2021), Native Orchids of Australia Edn. 3: 251
 APC
common name: Kermerton [sic; Kemerton] Donkey Orchid

Specimens

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Etymology

From the Latin cruento (stained or spotted with blood), in reference to the floral colour patterns.

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Common Name

Kermerton Donkey Orchid.

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Description

Leaves 2 or 3, 100–150 × 7–10 mm, folded. Flower stem 250–400 mm tall, 1–7-flowered. Flowers 25–35 mm across, pale yellow to yellow with red to red-brown markings, exterior surface of all segments stained or marked with red-brown; petals yellowish brown, dorsal sepal heavily stained with red-brown, commonly with a yellowish central area, labellum lobes heavily marked and stained with red or red-brown, lateral sepals brown with green tips. Dorsal sepal erect, 6–10 × 9–14 mm. Lateral sepals deflexed, crossed and recurved, 14–20 × 2–3 mm. Petals obliquely erect; stalk 3–7 mm long, curved, blackish; blade ovate, 10–18 × 8–12 mm. Labellum 7–10 mm long; lateral lobes 7–10 × 4–6 mm; midlobe convex, margins downcurved, broadly wedge-shaped when flattened, 7–10 × 7–9 mm. Callus ridge 1, 3–4 mm long, yellow.

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Diagnostic Features

Spring flowering; flowers 25–35 mm across, pale yellow, lacking any purple colouration, dorsal sepal and labellum with red to reddish brown markings; lateral sepals to 20 mm long.

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Phenology

Flowers August–October.

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Biostatus

Native.

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Distribution

W.A. (Lake Clifton to Capel); 10–100 m altitude.

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Habitat

Commonly grows in Banksia woodland in freely draining sand, occasionally in seasonally wet soil.

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Ecology

Flowers freely without fire.

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Taxonomic Notes

Named in 2016 based on specimens collected by Chris French in 1995 from Kermerton, W.A.

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Illustrations

D.L. Jones, A Complete Guide to Native Orchids of Australia 3rd edn: 247 (2021).

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Bibliography

Jones, D.L. (2021). A Complete Guide to Native Orchids of Australia 3rd edn. (Reed New Holland: Sydney).

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Source

Published 10 June 2022. This profile has been adapted from A Complete Guide to Native Orchids of Australia 3rd edn (2021) by D.L. Jones, with support from the Australian Orchid Foundation.

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Characters

From the Acacia characters species list, created by on Mar 12, 2015.
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Last updated: Unknown; Feb 29, 2024 12:41 Status: Partial

Author - D.L. Jones

Editor - Z.P. Groeneveld

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Acknowledgements -

Cite this profile as: D.L. Jones. Diuris cruenta, in Z.P. Groeneveld (ed.), Flora of Australia. Australian Biological Resources Study, Department of Climate Change, Energy, the Environment and Water: Canberra. https://profiles.ala.org.au/opus/foa/profile/Diuris%20cruenta [Date Accessed: 04 March 2025]