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1859
1860
1861
1866
1869
1872

Compare with:
1860
1861
1866
1869
1872

you bring on the same brush 1859 1860 1861 1866 1869
OMIT 1872

the former will have such a prepotent effect, 1859 1860 1861 1866 1869
are placed on the same stigma, the former is so prepotent 1872

any aids for self-fertilisation, 1859 1860 1861 1866 1869
favoured, 1872

as 1859 1860 1861 1866 1869
which effectually prevent the stigma receiving pollen from its own flower, as 1872

from 1859 1860 1861 1866 1869
others, as well as from 1872

which effectually prevent the stigma receiving pollen from its own flower: 1859 1860 1861 1866 1869
OMIT 1872

every one of 1859 1860
all 1861 1866 1869 1872

1 blocks not present in 1859 1860 1861 1866 1869; present in 1872
Another species of Lobelia, which is visited by bees, seeds freely in my garden.

of a flower receiving its own pollen, 1859 1860 1861 1866 1869
receiving pollen from the same flower, 1872

supposed that bees would thus produce a multitude of hybrids between distinct species; for if you bring on the same brush a
plants
plant's
own pollen and
that
pollen
from another
species
species,
the former will have such a prepotent effect, that it
will
will
invariably and completely
destroys,
destroy,
as has been shown by
Gärtner,
Gärtner,
the
any
influence
of
from
the foreign pollen.
When the stamens of a flower suddenly spring towards the pistil, or slowly move one after the other towards it, the contrivance seems adapted solely to ensure self-fertilisation; and no doubt it is useful for this end:
but
but,
the agency of insects is often required to cause the stamens to spring forward, as
Kölreuter
Kölreuter
has shown to be the case with the barberry; and
curiously
curiously
in this very genus, which seems to have a special contrivance for self-fertilisation, it is well known
that,
that
if
very
very
closely-allied forms or varieties are planted near each other, it is hardly possible to raise pure seedlings, so largely do they naturally cross. In
numerous
many
other cases, far from
self-fertilisation
there
being any aids for self-fertilisation, there are special
contrivances
contrivances,
as I could show from the
works
writings
of
C. C.
C. C.
Sprengel and from my own
observations:
observations,
which effectually prevent the stigma receiving pollen from its own flower: for instance, in Lobelia fulgens, there is a really beautiful and elaborate contrivance by which every one of the infinitely numerous pollen-granules are swept out of the conjoined anthers of each flower, before the stigma of that individual flower is ready to receive them; and as this flower is never visited, at least in my garden, by insects, it never sets a seed, though by placing pollen from one flower on the stigma of another, I raised plenty of
seedlings.
seedlings;
and
and
whilst
whilst
another
another
species
species
of
of
Lobelia
Lobelia
growing
growing
close
close
by,
by,
which
which
is
is
visited
visited
by
by
bees,
bees,
seeds
seeds
freely.
freely.
In very many other cases, though there
is
be
no special mechanical contrivance to prevent the stigma of a flower receiving its own pollen, yet, as