Will you look at this!!!? This is a fairly recent purchase and repot of mine.
This is a developing bud on Bulbophyllum claptonense! I still look at both Bulbophyllum claptonense and Bulbophyllum sumatranum as varieties of Bulbophyllum lobbii. Lobbii is a rather yellow to yellow gold flower measuring roughly 2" by 3 1/4 " high.
Claptonense is typically a more golden flower with varying amounts of brick red highlights. Most are either as a blush or in veining or striping in the flower segments
So for now I am anxiously waiting to see exactly what this species will look like. But a bud on a Bulbophyllum is so COOL!!!!