Publication
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The Different Structure of the Rostellum in Ophrydeae and Neottieae Article
Acta botanica neerlandica, 8(3), 338-355.January 1959
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Datierung des Basistorfes unter Amsterdam Article
Acta botanica neerlandica, 8(3), 356-368.January 1959
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Pollen-grain size and its value in Palynology Article
Acta botanica neerlandica, 8(3), 369-371.January 1959
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Book reviews of publications related to botanical work in the Netherlands Article
Acta botanica neerlandica, 8(3), 372-372.January 1959
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Investigations into the Chemotherapeutic Activity of Nitroso Hydroxyaryl Compounds towards some Virus Diseases Article
Acta botanica neerlandica, 8(4), 373-421.January 1959
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The Vegetation of Scottish Pine Woodlands and Dutch Artificial Coastal Pine Forests; with some Remarks on the Ecology of Listera Cordata Article
Acta botanica neerlandica, 8(4), 422-448.January 1959
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Some Notes on Skallingens Salt Marsh Vegetation and its Habitat Article
Acta botanica neerlandica, 8(4), 449-467.January 1959
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Nomenclatural notes on the Genera Dalzellia, Lawia, Mnianthus, and Terniola (Podostemaceae) Article
Acta botanica neerlandica, 8(4), 473-476.January 1959