Flora Lapponica' (pp. 145 and 164) mentions quadrifid petals of
_Lychnis dioica_, and much divided petals of _Rubus arcticus_. Among
other plants subject to this division of sepals or petals may be
mentioned as having come within the writer's personal observation,
_Ranunculus Lingua_, _R. acris_, _Papaver somniferum_, and others of
this genus, _Saponaria sp._, _Dianthus_, _Narcissus_, &c.

In some of the garden varieties of _Cyclamen_ the corolla looks at first
sight as if double, and the plan of the flower is oblong or elliptical,
instead of circular. In these flowers each lobe of the corolla is
divided almost to the base into two lobes, so that there appear to be
ten lobes to the corolla instead of five, as usual. The stamens are
normal in form and number in these flowers.

In the paroquet tulips of gardeners the segments of the perianth are
deeply and irregularly gashed, the segments occasionally becoming rolled
up and their margins coherent so as to form little tubular spurs. I have
also noticed the segments of the perianth in _Crocus_ and _Colchicum_
deeply cleft, so much so sometimes, as to equal in this particular the
stigmas. In the flowers of a species of _Oncidium_, communicated to me
by Mr. Currey, the lip was divided into three segments perfectly
distinct one from the other, but confluent with the column; the two side
pieces had callosities at the upper edge close to the base, the central
piece had a similar wartlike process in its centre. In these flowers the
ovary, the stigma, and the anther were all in a rudimentary condition.
Some verbenas raised by Mr. Wills offer a curious illustration of this
condition. It will be remembered that some of the lobes or petals of a
verbena are normally divided at the base to a slight degree, but in the
flowers in question this is carried to such an extent that the enlarged
lobes are pushed into the centre of the flower and simulate, at a first
glance, a distinct and separate organ, though in reality it is but an
enlargement of what occurs normally.[74]

[Illustration: FIG. 29.--Flower of _Oncidium sp._ seen from the back.
The lip is divided into three unequal segments.]

Moquin mentions having seen the stamens of _Matthiola incana_ and
_Silene conica_ completely divided, each section bearing half an anther,
exactly as happens in _Polygalaceae_. In tulips and lilies the same
author mentions division of the anther only, the filament remaining
entire, as happens naturall