Key to Tasmanian Dicots
Acianthus (includes Nemcianthus; Orchidaceae) 4a:117  
Tasmania has two species of Acianthus. These are the mayfly orchid (A. caudatus) and the mosquito orchid (A. pusillus). Both have a single, broad leaf attached near the base of the slender stem. The flowers are dark, with slender, spreading petals and sepals.

Both species typically occur in the understorey of dry sclerophyll forests.

Cyrtostylis was previously included in Acianthus.


Key to species  
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