Publication
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Lecananthus and Leucocodon, two genera to be added to the tribe Schradereae (Rubiaceae) Article
Blumea: Biodiversity, Evolution and Biogeography of Plants, 43(2), 265-286.January 1998
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Phaenocarpa helophilae spec. nov. (Hymenoptera: Braconidae), a gregarious parasitoid of Helophilus larvae (Diptera: Syrphidae), with notes on related species Article
Zoologische Mededelingen, 15-27.January 1998
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Filipendula vulgaris Moench (Knolspirea) toch wild op de Veluwe Article
Gorteria: tijdschrift voor de floristiek, de plantenoecologie en het vegetatie-onderzoek van Nederland, 24(3/4), 87-88.January 1998
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The myrmecophilous species of Myristica (Myristicaceae) from New Guinea Article
Blumea: Biodiversity, Evolution and Biogeography of Plants, 43(1), 165-182.January 1998
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Equisetaceae Article
Flora Malesiana - Series 2, Pteridophyta, 3(1), 287-288.January 1998
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Miscellaneous news Article
Flora Malesiana Bulletin, 12(3), 123-126.January 1998
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Amaranthus bouchonii Thell. (Franse amarant) en A. hybridus L. (Groene amarant) in Nederland Article
Gorteria: tijdschrift voor de floristiek, de plantenoecologie en het vegetatie-onderzoek van Nederland, 24(3/4), 69-80.January 1998
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On the identity of the new taxa of Galerina (Agaricales), provisionally described by J.J. Barkaman Article
Persoonia - Molecular Phylogeny and Evolution of Fungi, 17(1), 1-28.January 1998