Bulbophyllum nocturnum, which is the world's first known night-flowering orchid, which has been discovered on New Britain island, near Papua New Guinea.
 Flowers that open only at night are seen in a relatively small number of plant species, such as the queen of the night cactus, the midnight horror tree and night blooming jasmine. The new species belongs to a group of plants which are known for their bizarre flowers.
 
But experts say it has never been documented in the 25,000 species of orc...