EPIPHYLLUM OXYPETALUM
This was a very free flowering plant that I bought and displayed in HortPark's Home Garden until my colleague came and took it away a year ago.
I took a cutting then and the plant is quite big now. Recently, it produced lots of small flower buds and this flower bloomed on 18 Jan 10. The following 2 photos show the same bloom on 19 Jan 10 before it closed for good.