Most of the anthers on one plant were contabescent. Seventeen flowers
on the grandchildren were illegitimately fertilised with pollen taken from other
seedlings of the same lot, and produced fourteen capsules, containing on an
average 29.2 seeds; but they ought to have contained about 35 seeds. Fifteen
flowers legitimately fertilised with pollen from an illegitimate short-styled
plant (belonging to the lot next to be described) produced fourteen capsules,
containing an average of 46 seeds; they ought to have contained at least 50
seeds. Hence these grandchildren of illegitimate descent appear to have lost,
though only in a very slight degree, their full fertility.
We will now turn to the short-styled form: from a plant of this kind, fertilised
with its own-form pollen, I raised, during February 1862, eight seedlings, seven
of which were short-styled and one long-styled. They grew slowly, and never
attained to the full stature of ordinary plants; some of them flowered
precociously, and others late in the season. Four flowers on these short-styled
seedlings and four on the one long-styled seedling were illegitimately
fertilised with their own-form pollen and produced only three capsules,
containing on an average 23.6 seeds, with a maximum of 29; but we cannot judge
of their fertility from so few capsules; and I have greater doubts about the
normal standard for this union than about any other; but I believe that rather
above 25 seeds would be a fair estimate.
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