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136
My Studio Neighbors
·
W. Hamilton Gibson
120
Again,
let
us
suppose
the
variation
of
an
extra
long
nectary,
and
the
writer
recently
saw
a
number
of
these
orchids
with
nectaries
thirteen
inches
in
length.
The
moth
comes,
and
now
must
needs
insert
its
head
to
the
utmost
into
the
opening
of
the
flower.
This
would
insure
its
fertilization
by
the
pollen
on
the
insect's
tongue;
and
even
though
the
sipper
failed
to
reach
the
nectar,
the
pollen
would
be
withdrawn
upon
the
tongue,
to
be
carried
to
other
flowers,
which
might
thus
be
expected
to
inherit
from
the
paternal
side
the
tendency
to
the
longer
nectary.
The
tendency
towards
the
perpetuation
of
the
short
nectary
is
therefore
stopped,
while
that
of
the
longer
nectary
is
insured.
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