Birds and Nature, Vol. 08, No. 1, June 1900: In Natural ColorsVarious
History
Birds and Nature, Vol. 08, No. 1, June 1900: In Natural Colors
Various
Birds -- Periodicals; Natural history -- Periodicals
Thus with Nature to commune,
And to note her creatures gay;
While mind and heart are in attune,
With creation's work from day to day.
F. ALEX. LUCAS.
FLOWERS
A PATTERN FLOWER.
JOHN M. COULTER.
Flowers are of very many patterns, and it must not be supposed that
there is any special pattern for them all. There are four parts which
belong to flowers in general, and they are repeated in various flowers
in numberless ways, or one or more of the parts may be omitted.
The flower of the common wild lily, chosen for our illustration, is
highly organized, with all the parts represented and well developed.
Each part is constructed for some definite work, which we may or may
not fully understand.
The flower of the illustration shows on the outside six leaf-like
bodies, colored a deep orange or reddish, and bearing dark spots. These
six bodies are in two sets of three--an outer and an inner set. When
there are two sets of these leaf-like bodies the outer set is called
the _calyx_, and the inner one the _corolla_. The three leaves of the
calyx are called _sepals_, and the three leaves of the corolla _petals_.
In this case the sepals and petals look alike, and then it is usual
to speak of the whole set of six as the _perianth_. In many flowers,
however, the sepals and petals do not look at all alike. In the common
wake-robin, or _Trillium_, a near relative of the lily, the three
sepals are like ordinary small green leaves, while the petals are much
larger and showy, giving the characteristic color to the flower.
In the lily it should be further noticed that the sepals and petals
are all separate, but in many flowers they are united in various ways
to form urns, tubes, funnels, trumpets, etc. The common morning glory
is an illustration of a flower in which the petals are united so as to
form a beautiful trumpet-shaped or funnel-form corolla.
The general purpose of the perianth, that is, the two outer parts of
the flower, is to protect the far more important inner parts in the
bud, and when the flower opens the perianth unfolds and exposes the
inner parts, which are then ready for their peculiar work.
The bright color usually shown by the corolla, and sometimes also by
the calyx, as in the lily, is probably associated with the visits of
insects, which come to the flower for nectar or other food. Since it
has been found, however, that some visiting insects are color blind, it
is doubtful whether the color is so universal an attraction as it was
once thought to be, but it is certainly associated with some sort of
important work.
A summary of these various duties is as follows: The green, leaf-like
calyx is certainly for bud protection; the brightly colored corolla
(and sometimes calyx) adds to the duty of protection that of attracting
necessary insects, or some other duty that we do not as yet understand.
Public-domain text, read in full here on John Shaqi.
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