Dendrobium fellowsii

Dendrobium fellowsii, commonly known as the native damsel orchid, is an epiphytic or lithophytic orchid in the family Orchidaceae and has upright pseudobulbs, up to five leaves and groups of up to five pale green or yellowish flowers with a deep purple labellum. It grows in tropical North Queensland.
Description.
"Dendrobium fellowsii" is an epiphytic or lithophytic herb that has upright, cylindrical dark purplish pseudobulbs long and wide. 
There are between two and five dark green leaves long and wide. The flowering stems are long and bear between two and seven resupinate, pale green or yellowish flowers long and wide. The dorsal sepal is egg-shaped, long and about wide. 
The lateral sepals are triangular, long, about wide and spread widely apart from each other. The petals are narrow egg-shaped, long and about wide. The labellum is deep purple, about long and wide with three lobes. The side lobes are relatively large and curve upwards and the middle lobe is broad with two parallel ridges. Flowering occurs from October to January.
Taxonomy and naming.
"Dendrobium fellowsii" was first formally described in 1870 by Ferdinand von Mueller from a specimen collected near Rockingham Bay by John Dallachy. The description was published in "Fragmenta phytographiae Australiae" and the specific epithet ("fellowsii") honours Thomas Howard Fellows.
Distribution and habitat.
The native damsel orchid grows on trees or shrubs with stringy or flaky bark, in deep gullies or around the edges of large granite sheets in rainforest between the Mount Finnigan in the Cedar Bay National Park and Townsville in Queensland and in New Guinea and the Solomon Islands.
Conservation.
This orchid is classed as "vulnerable" under the Queensland Government Nature Conservation Act 1992.