Bulbophyllum virescens -

The plant has long and slender psudobulb, whereas the leave is soft and big. Normally found around waterfalls areas on top of rock boulders, covered with dead leaves and damp areas. Another lolwland orchids that can be found in Malaysia. The flowers give a very smelly similar tor dried fish or "ikan masin"

The plant in hand !...

The flower..

Note some insects, attracted to the smell, just another way to do the pollinations.

Remarks : Remarkable pictures of a remarkable species taken in-situ courtesy of Saiful.