I was given a cutting of this houseplant from a friend. He has no idea what it is but said that once every two years or so it will bloom. The flowers are very fragrant and last only a day or so. Two years later and I still have made no effort to identify until it bloomed a couple of days ago. He was right the flowers is not only very fragrant, it is also beautiful. Now I am interested in knowing what it is. Any help you can offer would be greatly appreciated.