f the
same individual unite, they generally do so by the corresponding
surfaces or edges, but the rule is probably not so general in its
application as has been supposed.

=Adhesion of foliar to axile organs.=--The appendicular organs may
likewise be found united to the axile ones. This union takes place in
many ways; sometimes the leaves do not become detached from the stem for
a considerable distance, as in the so-called decurrent leaves, at other
times the leaves are prolonged at their base into lobes, which are
directed along the stem, and are united with it. Turpin records a
tendril of a vine which was fused with the stem for some distance, and
bore leaves and other tendrils. Union of the leaf or bract with the
flower-stalk is not uncommon. It occurs normally in the Lime and other
plants.

=Adhesion of the sepals to the petals= is spoken of by Morren as
calyphyomy, [Greek: kalyx phyomai.][33] Moquin cites an instance in
_Geranium nodosum_, in which one petal was united by its lower surface
to one of the segments of the calyx. A similar circumstance has been
observed in _Petunia violacea_ by Morren. Duchartre describes an
instance wherein one of the outer sepals of _Cattleya Forbesii_ was
adherent to the labellum.[34]

=Adhesion of the stamens to the petals= is of common occurrence under
natural circumstances. Cassini has described a malformation of
_Centaurea collina_, in which two of the five stamens were completely
grafted with the corolla, the three others remaining perfectly free.
Adhesion of the petals to the column is not of infrequent occurrence
among Orchids. I have observed cases of the adhesion of the segments of
the perianth to the stamen in _Ophrys aranifera_, _Odontoglossum_, _sp_.
&c. It is the ordinary condition in _Gongora_ and some other genera. I
have seen it also in _Lilium lancifolium_. Some forms of _Crocus_,
occasionally met with, present a very singular appearance, owing to the
adhesion of the stamens to the outer segments of the perianth, the
former, moreover, being partially petaloid in aspect. M. de la Vaud[35]
speaks of a similar union in _Tigridia pavonia_. Morren[36] describes a
malformation of _Fuchsia_ wherein the petals were so completely adherent
to the stamens, that the former were dragged out of their ordinary
position, so as to become opposite to the sepals; the fusion was here so
complete that, no trace of it could be seen externally. It should be
remarked that it was the ou