Publication
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Sporogenesis in Polypodiaceae (Filicales). III. Species of several genera. Spore characters and their value in phylogenetic analysis Article
Blumea: Biodiversity, Evolution and Biogeography of Plants, 37(2), 529-561.January 1993
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From Cavolinia longirostris to twenty-four Diacavolinia taxa, with a phylogenetic discussion (Mollusca, Gastropoda) Article
Bijdragen tot de dierkunde, 62(3), 127-166.January 1993
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A new variety of Tylophora tetrapetala (Asclepiadaceae) Article
Blumea: Biodiversity, Evolution and Biogeography of Plants, 38(1), 231-235.January 1993
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Cnesmocarpon (gen. nov.), Jagera, and Trigonachras (Sapindaceae—Cupanieae): Phylogeny and systematics Article
Blumea: Biodiversity, Evolution and Biogeography of Plants, 38(1), 173-215.January 1993
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Two new species of Bulbophyllum (Orchidaceae) from Papua New Guinea Article
Blumea: Biodiversity, Evolution and Biogeography of Plants, 38(1), 157-160.January 1993
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In Memoriam: Gideon Kruseman, 3.9.1904—6.8.1992 Article
Gorteria: tijdschrift voor de floristiek, de plantenoecologie en het vegetatie-onderzoek van Nederland, 18(5/6), 98-101.January 1993
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On the history and type specimens of the Cape Verde Cane Warbler Acrocephalus brevipennis (Keulemans, 1866) (Aves, Sylviidae) Article
Bijdragen tot de dierkunde, 62(4), 249-253.January 1993
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An account of the fern genus Belvisia Mirbel (Polypodiaceae) Article
Blumea: Biodiversity, Evolution and Biogeography of Plants, 37(2), 511-527.January 1993