This variegation of the plumage, however, disappears with the first moult; but among the next young families there are always a few pied ones.
We have seen that variegation is transmitted much more feebly by seed from a branch which had become variegated through bud-variation, than from plants which were variegated as seedlings.
One-sided variegation on leaves or twigs with the opposite side wholly green are by no means rare.
It is very curious to note that variegation is perhaps the most universally known anomaly, while its hereditary tendencies are least known.
This must not be confounded with the true variety, as it consists only of a variegation in colour of the yellow, the red, and the dark tabby, and is more in lines than patches, or patches of lines or spots.
If the colours are deep and rich, and the variegation harmonious, the effect is very fine.
In some cases, variegation will not be reproduced by the rooted leaf.
So many worthless shrubs with poor variegation have been named and offered for sale that it is unwise to buy them from a catalogue.
Perhaps, amongst all the wealth of winter evergreen shrubs the rank of those which show variegation is too much exaggerated.
The secret of our discontent, possibly, lies in the fact that variegation in plants that are normally green is not, in its essence, a sign of health but of wasting sickness.
Vitis heterophylla variegata, a pretty, blue-berried climber, but tender; the variegation is rosy white.
We need only con over, mentally, all the more familiar examples of shrub variegation to find, probably, that we should do as well without a goodly proportion of them, though we may frankly admit some to be very handsome.
There are numerous varieties in cultivation, differing in thevariegation of their leaves.
Its beautiful variegation is reproduced true from seed, and it is almost an indispensable plant in the flower-garden, not growing so vigorously as the green kinds.
There have been endless disputes whether variegation should be considered as a disease.
In the pelargonium, and in some other plants, variegationis generally accompanied by some degree of dwarfing, as is well exemplified in the "Dandy" pelargonium.
The lack of the dark marking in the leaves was equivalent to the variegation in other varieties, only in a reverse direction.
As a proof of leaf variegation being a disease, the speaker alluded to cited a case in which a green leaved abutilon, upon which a variegated leaved variety had been grafted, threw out a variegated leaved shoot below the graft.
Albinism and white variegation in leaves appear to be due to the chlorophyl in such leaves being able to resist the action of the three (red, yellow, and blue) rays of light.
Again, color in block or in variegation is not positive evidence of disease in animal life.
Formerly many physiologists considered leaf variegation a disease, because it generally ran in stripes lengthwise of the leaf or in spots.
But the originating of varieties in which the variegation did not assume this form, with other considerations, has done much to upset this theory.
The theory that leaf variegation is a disease has been held by many distinguished botanists and is in nowise new.
At the meeting of the Association of Nurserymen in Chicago, last July, one of our prominent horticulturists described leaf variegationas a disease.
Many authors consider variegation as the result of disease; and the foregoing cases may be looked at as the direct result of the inoculation of a disease or some weakness.
We have seen that variegation is transmitted much more feebly by seed, taken from a branch which had become variegated through bud-variation, than from plants which were variegated as seedlings.
