Natuurtijdschriften

Toegang tot tijdschriften over de Nederlandse natuur

A comparison of the morphology of the periporate, distinctly echinate pollen grains of Ranunculus arvensis L. and the tricolpate-pericolpate, microechinate-scabrate pollen grains of R. repens L. is made. The differences, studied with the aid of sections, are discussed in detail.


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