See page in:
1859
1860
1861
1866
1869
1872

Compare with:
1859
1860
1861
1866
1872

touch 1859 1860 1861 1866 1869
ensure fertilisation, just to touch with the same brush 1872

with the same brush to ensure fertilisation; 1859 1860 1861 1866 1869
OMIT 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

all 1861 1866 1869 1872
every one of 1859 1860

quite
quite
sufficient,
sufficient
just
just
to touch the anthers of one flower and then the stigma of
another;
another
with the same brush to ensure fertilisation; but it must not be supposed that bees would thus produce a multitude of hybrids between distinct species; for if you bring on the same brush a
plant's
plants
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
....
in this very genus, which seems to have a special contrivance for self-fertilisation, it is well known
that
that,
if
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 all 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