Bulbophyllum virescens - another lowland orchids that can be found in Malaysia. The flower give a very smelly odour similar to dried fish, or called as "ikan masin" the locals.
The plant has ong 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.
The plant in hand !...
Remarks : Remarkable pictures of a remarkable species taken in-situ courtesy of Saiful.