Gita: I agree with Wren, your plant looks to be Epiphyllum oxypetalum: http://davesgarden.com/guides/pf/go/2443/ which is a night bloomer and apparently extremely fragrant! When mine bloomed earlier this summer my husband said the fragrance was really awesome but I could not smell it at all .. sinus problems!
Your Ric Rac is awesome! I need to repot mine at some point but I hate thorns!
Ric rac, fish bone, zig zag let's see your picture.
