Calochilus Paludosa or The Pale Calochilus - In Australia The Red Beard Orchid - The Strap Beard Orchid. Found in Queensland, New South Wales, Victoria, Tasmania and South Australia as well as New Zealand at elevations of sea-level to 800 meters.
Prosthecea cochleata, formerly known as Encyclia cochleata, Anacheilium cochleatum and Epidendrum cochleatum and commonly referred to as the clamshell orchid. It is also the National Flower of Belize where it is known as the black orchid.
Orchid Iris Walking Iris by ipedaler. I actually have this houseplant (grows outside in FL). The flowers appear for one day only on trailing leaves that send out roots if planted outside, hence the name.