Lily (wallpapers): The Liliaceae, or the Lily Family, is an important family of monocotyledons that includes a great number of ornamental flowers as well as several important agricultural crops; the onion has traditionally been classified here, though modern research has moved it to family Alliaceae. Plants in this family have linear leaves, mostly with parallel veins, and flower parts in threes. The Lily family formerly was a paraphyletic "catch-all" group that included a great number of genera that are now included in other families, and some in other orders, such as Agavaceae, Alliaceae, Anthericaceae s.s., Asphodelaceae, Convallariaceae, Hyacinthaceae, Melanthiaceae, Nartheciaceae, Smilacaceae , Tecophilaeaceae, Themidaceae, Tofieldiaceae, Trilliaceae and Uvulariaceae. The family Smilacaceae was formerly included in the Liliaceae but now is segregated on several bases. Family Melanthiaceae (Trilliaceae is possibly within the Melanthiaceae) is also now segregated by most taxonomists. Many other genera, such as Asparagus, formerly classified in family Liliaceae are now widely thought to belong to families in order Asparagales. Genus Calochortus, which includes the Sego and Mariposa lilies, and its allied genera are separated into a separate family, Calochortaceae, in some schemes, while others maintain them as a subfamily of Liliaceae, the Calochortoideae.