Publication
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Un Chaetognathe mésoplanctonique nouveau: Sagitta megalophthalma sp.n Article
Beaufortia, 17(224), 13-20.January 1969
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Morphology and subdivision of Amanita and a monograph of its section Lepidella Article
Persoonia - Molecular Phylogeny and Evolution of Fungi, 5(4), 285-573.January 1969
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Clues for the determination of the spore-sizes in Boudie’s illustrated publications Article
Persoonia - Molecular Phylogeny and Evolution of Fungi, 5(3), 233-236.January 1969
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Structural and petrofabric analysis of an “Alpine-type” peridotite: the lherzolite of the French Pyrenees Article
Leidse Geologische Mededelingen, 42(1), 1-57.January 1969
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Chromosome numbers of some Angiospermae collected in Cameroun and the Ivory Coast Article
Mededelingen van het Botanisch Museum en Herbarium van de Rijksuniversiteit te Utrecht, 313(1), 306-310.January 1969
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Studies on Discomycetes — III Article
Persoonia - Molecular Phylogeny and Evolution of Fungi, 5(3), 225-231.January 1969
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Notes on cantharelloid fungi—II. Some new taxa, and notes on Pseudocraterellus Article
Persoonia - Molecular Phylogeny and Evolution of Fungi, 5(3), 211-223.January 1969
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On the Distribution and Ecology of Ceratopteris in Surinam Article
Mededelingen van het Botanisch Museum en Herbarium van de Rijksuniversiteit te Utrecht, 328(1), 3-8.January 1969