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Darwin, Charles, 1809-1882

"Effects of Cross and Self Fertilisation in the Vegetable Kingdom"


Limnanthes douglasii.
A crossed plant flowered before any one of the self-fertilised in four
out of the five pots.
Phaseolus multiflorus.
In both pots a crossed plant flowered first.
Specularia speculum.
In all four pots a crossed plant flowered first.
Lobelia ramosa (First Generation).
In all four pots a crossed plant flowered before any one of the
self-fertilised.
Lobelia ramosa (Second Generation).
In all four pots a crossed plant flowered some days before any one of
the self-fertilised.
Nemophila insignis.
In four out of the five pots a crossed plant flowered first.
Borago officinalis.
In both pots a crossed plant flowered first.
Petunia violacea (Second Generation).
In all three pots a crossed plant flowered first.
Nicotiana tabacum.
A plant derived from a cross with a fresh stock flowered before any one
of the self-fertilised plants of the fourth generation, in fifteen out
of the sixteen pots.
Cyclamen persicum.
During two successive seasons a crossed plant flowered some weeks before
any one of the self-fertilised in all four pots.
Primula veris (equal-styled var.)
In all three pots a crossed plant flowered first.
Primula sinensis.
In all four pots plants derived from an illegitimate cross between
distinct plants flowered before any one of the self-fertilised plants.
Primula sinensis.
A legitimately crossed plant flowered before any one of the
self-fertilised plants in seven out of the eight pots.


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