R. Br., Prod. Fl. Nov. Holl. 330 (1810).
Synonymy: Not Applicable
Common name: Cinnamon bells, potato orchid.
Plant slender to moderately robust; rhizomes tuberous, thick, fleshy, scaly, to 8 cm long and c. 3 cm across; stem erect, dark-brown, 30-80 cm high and 2-7 mm diam.; sheathing scales loose and very obtuse, shortly acute sometimes acuminate, c. 1 cm long, crowded at the base, distant higher up.
Raceme 3-20 cm long, few- to many-flowered; flowers erect first then drooping to bring the dorsal sepal next to the axis; bracts subtending pedicels as long as or slightly longer than them; pedicels 3-10 mm long; ovary comparatively small; flowers bell-shaped, brown, white towards the apices, exterior surface often very rough, 13-20 mm long and 4-9 mm diam.; lobes slightly thickened marginally; lateral sepals connate almost to the level of the labellum-tip; dorsal sepal and petals united, their apices free, the dorsal sepal sometimes a little longer than the other segments; labellum mobile on a broad claw which is adnate to the basal projection of the lateral sepals, shorter than the rest of the perianth, ovate-oblong, somewhat obscurely 3-lobed, lateral lobes very small, the margins upturned and undulate or lacerate, apex of mid-lobe truncate, lamina suffused with yellow or orange, long median calli much crested, extending from the apex to about the middle of the lamina, then divided into 2 prominent divergent ridges which continue obscurely towards the base; column almost as long as the labellum, slender, erect, very narrowly winged throughout, traversed by a wide canal, with a small angular viscid stigma at the base; anther short, hemispherical, operculate, filament smooth; pollinia in 2 pairs, very granular, united by mucus at their apices.
Cady & Rotherham (1970) Australian native orchids in colour, pl. 73; Curtis (1980) Student's flora of Tasmania 4A:pl. 17; Hoffman & Brown (1984) Orchids of south-west Australia, p. 326.
Solitary or forming small groups in humus rich soil under heavy forest in high rainfall areas, often in deep leaf litter along creeks but uncommon in S.Aust.
S.Aust.: SL, KI, SE. all States except the N.T. New Zealand; naturalised in South Africa.
Flowering time: Oct. — Nov.
SA Distribution Map based
on current data relating to
specimens held in the
State Herbarium of South Australia
Pollinated by native bees.
Not yet available