Bulbophyllum fletcherianum 
Seedlings in 2" pots available for sale at $15 each.
The leaves are around 3-5 cm in length.
Only 3 plants available. 
This Bulbophyllum species under section macrobulbon is quite uncommon and difficult to come by. Leaves of mature plants can be more than 1 meter in length. The plants usually carry around 30 dark purple flowers on each inflorescence, measuring around 20-25 cm in size.