each side; Prof. Westwood also has described[860] three similar peloric
flowers, which all occupied a central position on the flower-branches.
In the Orchideous genus, Phalaenopsis, the terminal flower has been
seen to become peloric.

In a Laburnum-tree I observed that about a fourth part of the racemes
produced terminal flowers which had lost their papilionaceous
structure. These were produced after almost all the other flowers on
the same racemes had withered. The most perfectly pelorised examples
had six petals, each marked with black striae like those on the
standard-petal. The keel seemed to resist the change more than the
other petals. Dutrochet has described[861] an exactly similar case in
France, and I believe these are the only two instances of pelorism in
the laburnum which have been recorded. Dutrochet remarks that the
racemes on this tree do not properly produce a terminal flower, so
that, as in the case of the Galeobdolon, their position as well as
their structure are both anomalies, which no doubt are in some manner
related. Dr. Masters has briefly described another leguminous
plant,[862] namely, a species of clover, in which the uppermost and
central flowers were regular or had lost their papilionaceous
structure. In some of these plants the flower-heads were also
proliferous.

Lastly, Linaria produces two kinds of peloric flowers, one having
simple petals, and the other having them all spurred. The two forms, as
Naudin remarks,[863] not rarely occur on the same plant, but in this
case the spurred form almost invariably stands on the summit of the
spike.

The tendency in the terminal or central flower to become peloric more
frequently than other flowers, probably results from "the bud which
stands on the end of a shoot receiving the most sap; it grows out into
a stronger shoot than those situated lower down."[864] I have discussed
the connection between pelorism and a central position, partly because
some few plants are known normally to produce a terminal flower
different in structure from the lateral ones; but chiefly on account of
the following case, in which we see a tendency to variability or to
reversion connected with the same position. A great judge of
Auriculas[865] states that when an Auricula throws up a side bloom it
is pretty sure to keep its cha