y the case. In some of the
cultivated varieties of _Anemone_ and _Ranunculus_ all the parts of the
flower remain in their normal state, except the pistils, which latter
assume a petaloid appearance.

Many of the double flowers owe their peculiar appearance to the
combination of the following appearances--a petal-like form of the
stamens, increase in the number of these organs and similar changes
affecting the pistils, and is applied to several distinct conditions. If
in any given flower all the stamens and all the pistils become wholly
petaloid, no pollen is formed, and of course no seeds can be produced,
but this very rarely happens, as usually some pollen is produced, and
some ovules capable of being fertilised are developed.

In double flowers of _Primula sinensis_ it frequently happens that the
capsule is either partially leafy or partly petal-like; in either case
the fruit is open at the extremity, and often destitute of the style and
stigma. It is, however, doubtful if the ovules can be fertilised in
these flowers.

The following list comprises the names of those genera in which this
change has been most frequently observed, independently of corresponding
alterations in the stamens, but it is more usual for both sets of organs
to be similarly affected.

*Ranunculus!
*Anemone!
Nigella.
*Papaver!
*Dianthus!
Saponaria!
Viola!
Camellia!
Alcea.
Hibiscus!
Amygdalus!
Lonicera!
Scabiosa.
AEschynanthus!
Primula!

=Petalody of the ovules.=--The principal changes which occur in the
ovule have already been alluded to at pp. 262-272; it may here be
stated, however, that the ovules are occasionally represented by small
stalked petal-like structures. This happens with especial frequency
among _Cruciferae_.[313]

=Petalody of the accessory organs.=--A petaloid condition of the disc,
of the scales, or other excrescences from the axis or from the lateral
portions of the flower, is of frequent occurrence, though it is but
rarely that the change is of any great importance in a morphological
point of view. C. Morren has given the name adenopetaly to a case
wherein one of the glands at the base of the petals in _Lopezia_ was
replaced by a petal.[314] A similar change may be seen in the double
Oleander.

=Staminody of the bracts.=--An instance of this has been already alluded
to in _Abies excelsa_, as observed by Prof. Dickson, and in which some
of the bracts were seen assumi