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- W4241615307 abstract "WILL you allow me to ask Mr. Hubert Airy, in reference to his interesting paper on the “Microscopic Examination of Air,” in NATURE, vol. ix. p. 439, on what ground he refers the “triangular pollen” captured on his slide to the birch and hazel? Observations of my own have led me to the conclusion that the pollen of plants which depend exclusively on the wind for their fertilisation is perfectly spherical, at all events before the form of the grain is disturbed by the emission of the pollen-tubes, and this indeed one might expect from priori considerations. Among the pollen-grains I have especially observed, are those of Corylus avellana, Betula alba, and Populus balsamifera. I shall be much obliged if any of your readers could refer me to any accurate published description of the form of pollen-grains beyond those contained in Fritzsche's “Beiträge zur Kenntniss des Pollen.”" @default.
- W4241615307 created "2022-05-12" @default.
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- W4241615307 date "1874-04-01" @default.
- W4241615307 modified "2023-09-25" @default.
- W4241615307 title "Pollen-grains in the Air" @default.
- W4241615307 doi "https://doi.org/10.1038/009485a0" @default.
- W4241615307 hasPublicationYear "1874" @default.
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