Publication
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An annotated list of Myxomycetes found in the Netherlands, mostly in the Vicinity of Doorwerth Article
Mededelingen van het Botanisch Museum en Herbarium van de Rijksuniversiteit te Utrecht, 171(1), 80-98.January 1960
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Miscellaneous botanical Notes X Article
Blumea: Biodiversity, Evolution and Biogeography of Plants, 10(1), 136-141.January 1960
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A review of the genus Rhizophora with special reference to the Pacific species Article
Blumea: Biodiversity, Evolution and Biogeography of Plants, 10(2), 625-634.January 1960
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Revision of the Sapotaceae of the Malaysian area in a wider sense. XXII. Mastichodendron Cronquist Article
Blumea: Biodiversity, Evolution and Biogeography of Plants, 10(1), 122-125.January 1960
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Caribbean brackish and freshwater Cyanophyceae Article
Blumea: Biodiversity, Evolution and Biogeography of Plants, 10(2), 323-366.January 1960
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Revision of the Sapotaceae of the Malaysian area in a wider sense. XX. Madhuca Gmelin Article
Blumea: Biodiversity, Evolution and Biogeography of Plants, 10(1), 1-117.January 1960
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Ten years Foundation Flora Malesiana twenty-five years of work Article
Blumea: Biodiversity, Evolution and Biogeography of Plants, 10(2), 1-26.January 1960
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Florae Malseianae Precursores XXV. Notes on Malaysian and some S.E. Asian Cyperaceae VIII Article
Blumea: Biodiversity, Evolution and Biogeography of Plants, 10(2), 635-651.January 1960