In the world of dreams the rules of reality do not necessarily apply. Each dream is unique and it's a direct link to the soul and spirit. Psychology provides its own theories on what dreams mean, but so did tradition and the study of dreams for thousands of years before any relevant science had developed.
Dream Meanings - Tangerine-tangerine tree
Blossoming tangerine trees with fruit on them are a good sign, and for women they mean success in love. If you eat tangerines, however, then something will make you bitter.