Bulbophyllum tingabarinum f. flavum (aka pecten-veneris)

This species has an odd distribution all the way from East Asia (Hubei, Fujian and Anhui China, Hong Kong) to Southeast Asia (South Vietnam, Laos and Thailand). It is an intermediate to warm grower, and seems to be flowering twice a year in our greenhouse conditions. This is the yellow form, as opposed to the orange standard form. Nice and compact, often producing multiple spikes, especially when specimen-sized.