Arthrochilus F.Muell.

Flowers not hooded. Petals and sepals reflexed Arthrochilus
Basal leaves absent. A few loose bracts present on the stem. Sepals and petals 5 mm long, green with darker tints. Plant 6–15 cm high. Flowers 3–5. Blue Mts Uncommon. Fl. summer. Elbow Orchid Arthrochilus huntianus
Basal leaves prostrate, 2–5. Dorsal sepal 12–14 mm long; lateral sepals and petals shorter, green with darker tints. Plants 5–37 cm high. Flowers 3–20, in a loose spike. Coast. Fl. chiefly summer Arthrochilus prolixus