Abstract
I HAVE often noticed during spring and summer that flowers appear to follow the spectrum from the blue of the wild hyacinth to the deep scarlet of our summer flowers. Will any of your correspondents tell me if during spring the actinic rays of the sun are in greater force, and whether these chemical rays are those which revivify seeds and plants after their winter's hibernation? During autumn I have noticed the same gradations in the colours of flowers.
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ROGERS, C. Seasonal Order of Colour in Flowers. Nature 13, 129 (1875). https://doi.org/10.1038/013129b0
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DOI: https://doi.org/10.1038/013129b0


