<Li> Sweet orange--Citrus × sinensis (probably C. maxima × C. reticulata) </Li> <Li> Tangelo--Citrus × tangelo (C. reticulata × C. maxima or C. × paradisi) </Li> <Li> Tangor--Citrus × nobilis (C. reticulata × C. × sinensis) </Li> <Li> Ugli--(C. reticulata × C. maxima or C. × paradisi) </Li>

All citrus fruit originated with the chinese orange