Origin of Species Variorum

→ C. C. Sprengel has 1859 1860 1861 1866 1869

Sprengel, and more recently Hildebrand, and others, have 1872

→ plants 1859 1860 1861 1866 1869

so-named dichogamous plants 1872

↑ 1 blocks not present in 1859 1860 1861; present in 1866 1869 1872

So it is with the reciprocally dimorphic and trimorphic plants previously alluded to.

→ in so many cases be 1859 1860 1861 1866 1869

be in so many cases 1872

→ as I have found, 1859 1860 1861 1866 1869

OMIT 1872

→ mongrels: 1859 1860 1861 1866 1869

as I have found, mongrels: 1872

→ I suspect that it 1859 1860 1861 1866 1869

It 1872

→C. C. Sprengel has shown, and as I can confirm, either the anthers burst before the stigma is ready for fertilisation, or the stigma is ready before the pollen of that flower is ready, so that these →plants have in fact separated sexes, and must habitually be crossed. ↑ How strange are these facts! How strange that the pollen and stigmatic surface of the same flower, though placed so close together, as if for the very purpose of self-fertilisation, should →in so many cases be mutually useless to each

other?

other!

How simply are these facts explained on the view of an occasional cross with a distinct individual being advantageous or indispensable!

If several varieties of the cabbage, radish, onion, and of some other plants, be allowed to seed near each other, a large

majority

majority,

→as I have found, of the seedlings thus raised

~~will~~

will

turn

out,

out

→mongrels: for instance, I raised 233 seedling cabbages from some plants of different varieties growing near each other, and of these only 78 were true to their kind, and some even of these were not perfectly true. Yet the pistil of each cabbage-flower is surrounded not only by its own six stamens, but by those of the many other flowers on the same

plant;

plant.

How, then, comes it that such a vast number of the seedlings are mongrelized? →I suspect that it must arise from the pollen of a distinct variety having a prepotent effect over

the

flowers

flower's

own pollen; and that this is part of the general law of good being derived from the intercrossing of distinct individuals of the same species. When distinct species are crossed the case is

~~directly the~~

directly the

reversed,

reverse,

for a

plants

plant's

own pollen is

almost always

always

prepotent over foreign pollen; but to this subject we shall return in a future chapter.

In the case of a

large

gigantic

tree covered with

innume- rable

innumerable

flowers, it may be objected that pollen could seldom be carried from tree to tree, and at most only from flower