The peculiar short, stunted branches or " spurs " which bear the flower-buds of the pear, apple, plum, sweet cherry, red currant, laburnum, &c., deserve special attention.
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.
In some places, occupying the sides and hollows of ravines, are found the rose bay (Nerium Oleander), called in Persian khar-zarah, or ass-bane, the wild laburnum and various Indigoferae.
Elongated form(Raceme), Hyacinth, Laburnum,Currant.