`` hyacinths , '' she babbled with frantic determination as he began stalking her step for step , past the table of potted pansies , past the table of potted lilies , `` are part of genus hyacinthus , although the cultivated variety , which we have here , is commonly called the dutch hyacinth , which is part of h. orientalis - '' `` elizabeth , '' be interrupted silkily , `` i 'm not interested in flowers . ''