[? Du., f. bij BY + bloem (pl. bloemen) BLOOM, flower.] One of the main varieties of the Garden Tulip.
1843. Penny Cycl., XXV. 343/2. The varieties of the latter tulip [T. Gesneriana] … are divided into … Bizarres, Bybloemens, Roses, and Selfs.
1846. Mrs. Loudon, Ladies’ Comp. Flower-Gard., 303. The Bybloemens … are white, shaded with violet or dark purple.
