d-coloured variety. On
a double stock (_Matthiola incana_) I have seen a branch bearing single
flowers; and {382} on a dingy-purple, double variety of the wall-flower
(_Cheiranthus cheiri_) a branch which had reverted to the ordinary
copper colour. On other branches of the same plant, some flowers were
exactly divided across the middle, one half being purple and the other
coppery; but some of the smaller petals towards the centre of these
same flowers were purple longitudinally streaked with coppery colour,
or coppery streaked with purple. A Cyclamen[864] has been observed to
bear white and pink flowers of two forms, the one resembling the
Persicum strain, and the other the Coum strain. _Oenothera biennis_ has
been seen[865] bearing flowers of three different colours. The hybrid
_Gladiolus colvillii_ occasionally bears uniformly coloured flowers,
and one case is recorded[866] of all the flowers on a plant thus
changing colour. A Fuchsia has been seen[867] bearing two kinds of
flowers. _Mirabilis jalapa_ is eminently sportive, sometimes bearing on
the same root pure red, yellow, and white flowers, and others striped
with various combinations of these three colours.[868] The plants of
the Mirabilis which bear such extraordinarily variable flowers, in
most, probably in all cases, owe their origin, as shown by Prof. Lecoq,
to crosses between differently-coloured varieties.

* * * * *

_Leaves and Shoots._--Changes, through bud-variation, in fruits and
flowers have hitherto been treated of, but incidentally some remarkable
modifications in the leaves and shoots of the rose and Cistus, and in a
lesser degree in the foliage of the Pelargonium and Chrysanthemum, have
been noticed. I will now add a few more cases of variation in
leaf-buds. Verlot[869] states that on _Aralia trifoliata_, which
properly has leaves with three leaflets, branches bearing simple leaves
of various forms frequently appear; these can be propagated by buds or
grafting, and have given rise, as he states, to several nominal
species.

With respect to trees, the history of but few of the many varieties
with curious or ornamental foliage is known; but several probably have
originated by bud-variation. Here is one case:--An old ash-tree
(_Fraxinus excelsior_) in the grounds of Necton, as Mr. Maso