Letter | Published:

Seasonal Order in Colour of Flowers

Nature volume 13, page 427 | Download Citation



IT seems that Mr. Thiselton Dyer has thought fit to conclude the different observations made on this interesting subject by copying a part of Sachs's “Text-book.” He will, I hope, allow me to point out to him the latest researches respecting the influence of light on the colour of flowers, published by E. Askenasy, in the Botanische Zeitung, 1876, Nos. 1 and 2. This author made experiments with several flowers which had sufficient food at their disposal, and found that some of his flowers changed their colour when placed in the dark, while it was not so with others. Therefore it cannot be said that light has no influence. The cause of this difference, observes the author, has as yet not been explained; other experiments will have to be made to clear up this point.

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  1. Amsterdam

    • J. C. COSTERUS


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