Common name: Gnat Orchid
Cyrtostylis reniformis R.Br. APNI*
Synonyms: Acianthus reniformis (R.Br.) Schltr. APNI*
Acianthus oblongus (Hook.f.) Schltr. APNI*
Description: Erect terrestrial herb, 5–27 cm high.
Leaf reniform, circular or cordate, 1.5–4 cm long, 1.4–3.5 cm wide, prominently reticulate, upper surface grey-green with whitish veins, lower surface paler and crystalline.
Inflorescence rachis to 8 cm long, 1–8-flowered. Flowers light reddish brown or darker or rarely light yellowish green. Dorsal sepal linear to lanceolate, 8–12 mm long, erect and incurved, concave. ± sessile, c. 10 mm long. Lateral sepals linear, a little shorter, projected forwards or spreading. Petals spreading or downcurved, similar to lateral sepals. Labellum oblong, 7–10 mm long, 3–4 mm wide, projecting horizontally forwards, with a pointed apex, adjacent margins toothed. Column 5–6 mm long, bent forward about the middle, slender but slightly dilated at each end.
Distribution and occurrence: Widespread in sclerophyll forest and heath, from coastal districts inland to Wagga district.
NSW subdivisions: NC, CC, SC, NT, CT, ST, NWS, CWS, SWS
Other Australian states: Qld Vic. Tas. W.A. S.A.
Text by P. H. Weston
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.