The tag just says stonei x concolor.
This plant has about 4 mature size growths, 1 previously bloomed and 1 new start. Last time it bloomed was about 18 months ago, but I assume that this was largely due to changes in culture. The plant grows in my living room next to a large sliding glass door. I don't put it under lights at all. My multis seem to like this treatment.
I certainly didn't expect 4 flowers this time around.