Abstract
MR. F. B. HUTCHINSON of 36, St. Aubyns, Hove, Sussex, writes that early in September in Luxemburg, he noticed that two horse-chestnut trees (sculus Hippocastanum) in the Place Guillaume were in full flower. The square contained about twenty-four trees, all bearing abundant fruit except the two in flower in the extreme north-east corner—these had only flowers and new green leaves. On the normal trees the leaves were turning brown at the edge and some had already fallen. On the two flowering trees, all the leaves produced in the spring had turned completely brown and most of them had dropped off, while the buds which usually remain dormant during the winter had opened to produce fresh green leaves and apical inflorescences, leaving the bud scales scattered on the ground beneath. It is, perhaps, significant that the winter bud of sculus normally contains the next year's shoot and inflorescence in a very advanced stage of development. The flowers are normally produced in May.
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September Flowering of the Horse-Chestnut. Nature 132, 512 (1933). https://doi.org/10.1038/132512a0
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DOI: https://doi.org/10.1038/132512a0