Some of the best of the varieties are: - Purple: David Rizzio, Sir Franklin, purpureus grandiflorus.
Tetragonolobus purpureus, Retama retam, Webb.
Cronin's " Codex Purpureus," Texts and Studies, v.
Of these the most remarkable example is Cytisus Adami, a tree which year after year produces some shoots, foliage and flowers like those of the common laburnum, others like those of the very different looking dwarf shrub C. purpureus, and others again intermediate between these.
We may hence infer that C. purpureus was grafted or budded on the common laburnum, and that the intermediate forms are the result of graft-hybridization.
Purpureus, i z ft., with pink flower-heads, having narrow twisted ray-florets; E.
Formerly it was used, as the origin of the name shows, of the deep crimson colour called in Latin Purpura, purpureus and in Greek 7rop41upa, irop4 peos (from 7ropcupecv, to grow dark, especially used of the sea).