Calochilus russeus
Calochilus russeus, commonly known as the reddish beard orchid, is a species of orchid endemic to the Northern Tablelands of New South Wales. It has a single thick, dark green leaf and up to twelve greenish flowers with red stripes and a hairy labellum which is the largest part of the flower. It is a rare orchid, growing as isolated individuals near Ebor, [New South Wales|Ebor].
Description
Calochilus russeus is a terrestrial, perennial, deciduous, herb with an underground tuber and a single thick, dark green, channelled leaf long and wide. Unlike some others in the genus, the leaf is fully developed at flowering time. Between four and twelve greenish flowers with red stripes are borne on a flowering stem tall. Individual flowers last for between two and five days. The dorsal sepal is long, wide and forms a hood over the rest of the column. The lateral sepals are long, about wide and spread apart from each other behind the labellum. The petals are long, about wide, asymmetrically shaped, have a hooked tip and curve forwards partly surrounding the column and upper labellum. The labellum is long, wide, with short, thick red calli near its base, thick hairs up to long near its middle and a glandular tip which is long and about wide. The column has two purple "eyes". Flowering occurs from December to February.
Taxonomy and naming
Calochilus russeus was first formally described in 2004 by David Jones from a specimen collected near the road between Guyra and Ebor and the description was published in The Orchadian. The specific epithet is a Latin word meaning "reddish".
The reddish beard orchid grows with bracken, grasses and low shrubs in peppermint forest near Ebor. It occurs as scattered individuals in relatively low numbers, including in Cathedral Rock [National Park].