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Updated: June 4, 2025
The book bears somewhat the same relation to my little book on 'Climbing Plants, which 'Cross-Fertilisation' did to the 'Fertilisation of Orchids; for in accordance with the principle of evolution it was impossible to account for climbing plants having been developed in so many widely different groups unless all kinds of plants possess some slight power of movement of an analogous kind.
When two such gametes unite in fertilisation the resulting organism will be a homozygous recessive, and the corresponding character will be absent. In this way we can conceive the origin of albino individuals from a coloured race, supposing the colour was due to a single factor. In Bateson's opinion the origin of a new dominant is a much more difficult problem.
It might be urged that these flowers, had these miraculous combinations not been, would not have survived, but would have had their place filled by others that stood in no need of crossed fertilisation; and the non-existence of the first would have been perceived by none, nor would the life that vibrates on the earth have seemed less incomprehensible to us, less diverse, or less astounding.
Therefore, the flowers that have adapted themselves to his needs, and that depend upon him mainly or solely for fertilisation, waste no unnecessary material on those big flaunting coloured posters which we human observers know as petals.
And when plants have attained maturity and flowered, the flowers employ numberless ways of attracting insects for the purpose of fertilisation. In a still, tropical forest, such as that of Lower Sikkim, there is no hope of the pollen being carried from one flower to another by air-currents. The flowers have therefore to devise a means for the transport of the pollen.
Classical Education Mental Discipline Mental Fertilisation Poetry The August Soul The Secret of a Star The Voice of the Soul Choice Studies Alere Flammam Hugh found that, as he grew older, he tended to read less, or rather that he tended to recur more and more to the familiar books.
The ovules of plants after fertilisation have to be nourished for a time; hence the pollen is necessarily brought to the female organs being placed on the stigma, by means of insects or the wind, or by the spontaneous movements of the stamens; and in the Algae, etc., by the locomotive power of the antherozooids.
With lowly-organised aquatic animals, permanently affixed to the same spot and having their sexes separate, the male element is invariably brought to the female; and of this we can see the reason, for even if the ova were detached before fertilisation, and did not require subsequent nourishment or protection, there would yet be greater difficulty in transporting them than the male element, because, being larger than the latter, they are produced in far smaller numbers.
According to one story Romulus, the first king of Rome, was cut in pieces by the senators, who buried the fragments of him in the ground; and the traditional day of his death, the seventh of July, was celebrated with certain curious rites, which were apparently connected with the artificial fertilisation of the fig.
Fraenkel found that removal of both ovaries in rabbits between the first and sixth days after fertilisation prevented pregnancy, and that the same result followed if the corpora lutea were merely destroyed in situ by galvano-cautery. Either process carried out between the eighth and twentieth days of pregnancy causes abortion.
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