nt represented the stalk of the leaf. The pistil was entirely
absent and its place was supplied by a branch with numerous perfectly
formed stipulate leaves.

Some flowers of _Anagallis arvensis_ described by Dr. Marchand[119] are
so interesting and show so well the gradual stages by which this
malformation is arrived at, that it is desirable to cite the summary of
Dr. Marchand's researches as given in the 'Gardeners' Chronicle' by Mr.
Berkeley, taking that instance first in which the parts of the flower
departed least from the normal condition, and then the others in their
proper order. In all the parts there was a greater or less tendency to
assume a green tint; in some they were entirely green, in others the
brighter colours were confined to the more recently developed parts.

"1. In the first case then, the sepals and petals were in their normal
position, though rather more dilated than usual; the anthers were
fertile, the principal change existing in the ovary, the upper part of
which was wanting, so that the ovules were exposed seated on the central
placenta.

2. In the next step the calyx, more developed than usual, was separated
from the corolla by a long peduncle, and the ovary, which was ovate,
contained instead of a placenta a sort of plumule or young shoot.

3. In this case the corolla and calyx were distant from each other;
there was no trace of stamens, but the axis was continued from the
centre of the corolla, and ended in a leaf-bud.

4. The calyx and corolla nearly as before, but instead of stamens a
whorl of little leaves was developed, in the centre of which the axis
was continued, bearing at its tip two whorls of leaflets, alternately
three and three.

5. In this case two out of the five stamens were normal, the other three
changed into leaves, showing clearly the origin of the leaflets, in the
last case, which took the place of the stamens.

6. The ovary varied in different flowers. In some the placenta was
crowned with ovules; in others the ovules were replaced by a single
whorl of leaflets; in others there was every shade of change from
ordinary ovules to perfect leaflets; while in others, again, every ovule
was converted into a leaf with a long petiole.

7. In these flowers shoots were developed in the axils of the sepals, or
on the face of the petals between the point of their insertion and that
of the stamens, and, what is most curious, in the interior of the
ovaries round the foot of t