Bulbophylum lasianthum - the flower.
Bulbophyllum lasianthum orchids is one of the largest type of bulbophylum species in Malaysia. The leaves can reach up to 2 feets, and normally found on top of rock boulders under tree shades, beside river banks.
The flowers emit a strong stench , similar to dried fish or 'ikan masin' as called by the locals. Interesting?... well it depends...
Picture courtesy of TheOman and Pictures from http://oapm.proboards52.com/index.cgi