Publication
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Revision of the Lauraceae V. A monograph of the genera: Anaueria, Beilschmiedia (American species) and Aniba Article
Mededelingen van het Botanisch Museum en Herbarium van de Rijksuniversiteit te Utrecht, 48(1), 834-931.January 1938
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Notes on the Acanthaceae of Surinam Article
Mededelingen van het Botanisch Museum en Herbarium van de Rijksuniversiteit te Utrecht, 47(1), 130-176.January 1938
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Notes on the Cactaceae of CuraƧao, Aruba, Bonaire and North Venezuela Article
Mededelingen van het Botanisch Museum en Herbarium van de Rijksuniversiteit te Utrecht, 45(1), 29-55.January 1938
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Haplolobus Celebicus, nov. spec. (Burseraceae) Article
Blumea: Biodiversity, Evolution and Biogeography of Plants, 3(1), 111-113.January 1938
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Double Teeth in the Sperm Whale (Physeter macrocephalus L.) Article
Zoologische Mededelingen, 20(17), 211-221.January 1938
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Notes on the two Species of Siphunculata or Sucking-lice occuring on Rattus spp. in the Malayan and Pacific Regions, with Special reference to Java Article
Zoologische Mededelingen, 20(19), 231-236.January 1938
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The genus Stackhousia in the Malay Archipelago Article
Blumea: Biodiversity, Evolution and Biogeography of Plants, 3(1), 173-178.January 1938
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Revision of the Sarcospermataceae Article
Blumea: Biodiversity, Evolution and Biogeography of Plants, 3(1), 183-200.January 1938