This particular cultivar was rather free flowering and frequently rewarded us with multiple blossoms on the same plant. As with all Epiphyllum, the flowers are ephemeral and last only a day but are lightly fragrant.
Unfortunately since my colleague took over this corner, I don't see this plant anymore.
This photo reminds me that I need to find this plant and hopefully plant it back at the Home Garden so that others can have the opportunity to admire and appreciate its beauty.