Chiloglottis trullata
Chiloglottis trullata, commonly known as the triangular orchid, is a species of orchid endemic to Queensland. It has two dark green leaves and a single small, green or pinkish flower with a shiny, dark reddish black, insect-like callus surrounded by reddish club-shaped calli covering most of the upper surface of the labellum.

Description
Chiloglottis trullata is a terrestrial, perennial, deciduous, herb with two ground-hugging, dark green, oblong to elliptic leaves  long and  wide on a petiole  long. A single green or pinkish flower  long and  wide is borne on a flowering stem  high. The dorsal sepal is spatula-shaped,  long and about  wide. The lateral sepals are linear,  long, about  wide and curve downwards and away from each other. There is a glandular tip about  long on the end of all three sepals. The petals are linear to lance-shaped with the narrower end towards the base,  long, about  wide and turn downwards towards the ovary. The labellum is broadly trowel-shaped,  long and  wide. There is a shiny, dark reddish black, insect-like callus with a handlebar-shaped, stalked "head" end about  long and  wide. The callus and associated glands occupy most of the upper surface of the labellum. The column is pale green with a few purple spots,  long and about  wide with narrow wings. Flowering occurs in July and August.

Taxonomy and naming
Chiloglottis trullata was first formally described in 1991 by David Jones from a specimen collected in the Blackdown Tableland National Park and the description was published in Australian Orchid Research. The specific epithet (trullata) is a Latin word meaning "trowel", referring to the shape of the labellum.

Distribution and habitat
The triangular ant orchid grows near sandstone boulder in tall forest on the Blackdown Tableland.

References

External links 

trullata
Orchids of Queensland
Plants described in 1991