Bulbophyllum levanae

Native to the Philippines, elevations around 500 m. 

This species prefers intermediate-warm-hot conditions, partial shade. This species likes to be moist, drying out somewhat between watering. Good air circulation, low  light and high humidity. Can flower several times per yer

Bulbophyllum nymphopolitanum often cited as a synonym. 

Mounted or potted. 

Link to photos and information on Jay’s Internet Orchid Encyclopedia