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stamens in the same verticil, not counting the possible reappearance
of stamens of the internal suite, and five chambers in the ovary.
On the whole, there is a very marked tendency towards Types 4
and 5, the last being prevalent among Dicots, while Type 3 is
the rule among the Monocots.
....This phenomenon is found fairly
frequently among the Iris Kaempferi, but less often among
the garden irises.
....Irises with double blossoms.
----- Duplicature derives less from a multiplication of the parts
of the verticile than from a transformation, a metamorphosis,
of these structures.
....Bliss insisted on the fact that
ordinary duplicature (that of the Compositae being of another
category altogether) is a centripetal phenomenon, petalody affecting
the stamens and the pistils, while peloria (that which consists
in the regularity of a zygomorphic flower being cast aside) involves
a centrifugal tendency, the petals and other internal verticils
tending to assume the shape and appearance of the sepals.
....Although petalody of the stamens
was noted in Iris Kaempferi and Iris Sieboldii by
Worsdell, and in Iris Vartani alba by Miss Armitage, and
petalody of the styles by Celakowsky in an unspecified Iris, double
Iris flowers are due primarily to a sepalody of the petals. It
is, therefore, a peloric change rather than a duplicature and
one cannot refrain from musing upon the Digitalis with their peloric
terminal blossoms when one sees these stalks of Iris crowned by
abnormal flowers.
....In the double Iris Kaempferi
one finds the 3 petals transformed into 3 sepals, thereby increasing
the number of those to 6, transformation of 3 stamens into 3 petaloid
parts, and the beginning of the transformation of the 3 styles
into 3 petaloid parts. The Iris Kaempferi Erynnie is that
which most perfectly demonstrates this type.
....A similar transformation, although
less complete, occurs in double Iris pallida dalmatica
and double Iris ochroleuca.
....As seen above, the phenomenon
was complicated by proliferation among the double Iris siberica,
and the fusion of several flowers among Iris variegata Maori
King, Iris pallida variabilis and Iris aphylla nudicalis
(Armitage).
....Iris with Clematis Form
Flowers. ---- It is necessary to juxtapose the flowers
of double Irises to those with "Clematis" blooms. Among
these last, if one is dealing with a Pogoniris like Iris germanica,
Edouard Michel, and Clematis and the Intermediate
iris Dorothée, the petals remain petals without
beards and show their typical coloration, but the carriage of
the petals is affected. Instead of being erect, they become pendent.
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