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1859
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1869
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1860
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by 1859 1860 1861 1866
for instance, by 1869 1872

insects. 1859 1860 1861 1866
insects; but their visits do not in any way benefit the plant. 1869 1872

Let us now suppose a little sweet 1859 1860 1861 1866
Now, let us suppose that the 1869 1872

to be excreted by the inner bases 1859 1860 1861 1866
was excreted from the inside 1869 1872

flower. 1859 1860 1861 1866
certain number of plants of any species. 1869 1872

In this case 1859 1860 1861 1866
OMIT 1869 1872

the stigma of another flower. 1859 1860 1861 1866
another. 1869 1872

we have good reason to believe (as will hereafter be more fully alluded to), would produce very 1859 1860 1861 1866
as we have good rea- son to believe, would produce 1869
as can be fully proved, gives rise to 1872

1 blocks not present in 1859 1860 1861 1866; present in 1869 1872
The plants which produced flowers with the largest glands or nectaries, excreting most nectar, would oftenest be visited by insects, and would oftenest be crossed; and so in the long-run would gain the upper hand and form a local variety.

from flower to flower, 1859 1860 1861 1866
OMIT 1869 1872

a 1859 1860 1861 1866
to be a 1869 1872

and those 1859 1860 1861 1866
and the 1869
to be thus robbed; and the 1872

effected,
effected
by glands at the base of the stipules in some Leguminosæ, and at the
backs
back
of the
leaves
leaf
of the common laurel. This juice, though small in quantity, is greedily sought by insects. Let us now suppose a little sweet juice or nectar to be excreted by the inner bases of the
flowers
petals
of a flower. In this case
Insects
insects
in seeking the nectar would get dusted with pollen, and would
certainly
certainly
often transport
it
the pollen
from one flower to the stigma of another flower. The flowers of two distinct individuals of the same species would thus get crossed; and the act of crossing, we have good reason to believe (as will hereafter be more fully alluded to), would produce very vigorous seedlings, which consequently would have the best chance of flourishing and surviving. Some of these seedlings would
almost certainly
probably
inherit the nectar-excreting power. Those individual flowers which had the largest glands or nectaries, and which excreted most nectar, would be oftenest visited by insects, and would be oftenest crossed; and so in the long-run would gain the upper hand.
The
Those
flowers, also, which had their stamens and pistils placed, in relation to the size and habits of the particular
insects,
insect
insects
which visited them, so as to favour in any degree the transportal of
the
their
pollen,
pollen
from flower to flower, would likewise be
favoured.
favoured
or
or
selected.
selected.
We might have taken the case of insects visiting flowers for the sake of collecting pollen instead of nectar; and as pollen is formed for the sole
purpose
object
of fertilisation, its destruction appears a simple loss to the plant; yet if a little pollen were carried, at first occasionally and then habitually, by the pollen-devouring insects from flower to flower, and a cross thus effected, although nine-tenths of the pollen were destroyed, it might still be a great gain to the
plant
plant;
and those individuals which produced more and more pollen, and had larger
and larger
and larger
anthers, would be selected.