The florists' varieties of tulips, which have sprung from Tulipa Gesneriana, are arranged in separate classes named bizarres, bybloemens and roses, according to their colour and marking.
Judged by the florists' rules, they are either good or bad in form, and pure or stained (white or yellow) at the base; the badly formed and stained flowers are thrown away, while the good and pure are grown on, these being known as "breeder" tulips.
One of the most important of the properties of a fine florists' tulip is that the cup should form, when expanded, from half to a third of a hollow ball, the six divisions of the perianth being broad at the ends, and smooth at the edges, so that the divisions may scarcely show on indenture.
Thoroughly decayed, it is one of the best of all manures for mixing in composts for florists' flowers and other choice plants.
- ThiS term includes not only those fibrous-rooted plants of herbaceous habit which spring up from the root year after year, but also those old-fashioned subjects known as florists' flowers, and the hardy bulbs.