Bulbophyllum macrobulbon 
2.5" pot blooming size plant with 3 growths available for sale at $300. 
The plant has 2 growths with leaves and one bulb without leaves. 
The plant has flowered once previously, around January this year. The flower images are from the exact plant.
Only one plant available. 

This rare Bulbophyllum species from section macrobulbon has really nice flowers. It is easy to grow and flowers more frequently as compared to Bulbophyllum phalaenopsis. The flowers are around 5 cm in size with slight odour when smelled closely. The plant usually produce 2-3 flowers on each spike. 

Bulbophyllum macrobulbon