Bulbophyllum gracillimum is a lowland orchids commonly found in Malaysian jungles. In on of my trip to Pahang, a state in Malaysia, this species were found growing in rubber plantations. Trees upon trees, this species were growing.
Luckily, the plantations owner was not keen on this plant, but rather keen on the rubber its self!.
The flower is long and slender, while the plant it self looks more to bulbophyllum vaginatum?... dont think so!..
The flower courtesy of TheOman from http://oapm.proboards52.com/index.cgi?action=recent