Diuris disposita (Diuris disposita)
Description
Diuris disposita is a tuberous, perennial herb with usually only one linear leaf 150–300 mm (6–10 in) long and 4–5 mm (0.2–0.2 in) wide. Between two and seven yellow flowers with brown markings, 20 mm (0.8 in) wide are borne on a flowering stem 200–350 mm (8–10 in) tall. The dorsal sepal projects forward and is egg-shaped, 7–11 mm (0.3–0.4 in) long and 4–7 mm (0.2–0.3 in) wide. The lateral sepals are linear to sword-shaped, green and brownish, 10–24 mm (0.4–0.9 in) long, about 2 mm (0.08 in) wide, turned downwards and parallel to, or crossed over each other. The petals are more or less erect, spread apart from each other with an elliptic to egg-shaped blade 6–9 mm (0.2–0.4 in) long and 4.5–6.5 mm (0.2–0.3 in) wide on a green stalk 4–7 mm (0.2–0.3 in) long. The labellum is 7–9 mm (0.3–0.4 in) long and has three lobes. The centre lobe is egg-shaped, 4–7 mm (0.2–0.3 in) wide and the side lobes are linear to oblong, 2–3 mm (0.08–0.1 in) long and about 1 mm (0.04 in) wide. There are two ridge-like calli about 4.5 mm (0.18 in) long near the base of the mid-line of the base of the labellum. Flowering occurs in September and October.
Taxonomic tree
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Domain: Eukarya
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Kingdom: Plantae
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Phylum:
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Class: Liliopsida
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Order: Asparagales
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Family: Orchidaceae
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Genus: Diuris
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