Publication
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The freshwater crabs of Ethiopia, northeastern Africa, with the description of a new Potamonautes cave species (Brachyura: Potamonautidae) Article
Contributions to Zoology, 81(4), 235-251.January 2012
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A taxonomic revision of the Malesian species of Lasianthus (Rubiaceae) Article
Blumea: Biodiversity, Evolution and Biogeography of Plants, 57(1), 1-102.January 2012
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Phylogenetic and ecological signals in the wood of Spathelioideae (Rutaceae) Article
IAWA Journal, 33(4), 337-353.January 2012
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Two new Oxalis species (Oxalidaceae) from the Ai-Ais / Richtersveld Transfrontier Park, South Africa Article
Blumea: Biodiversity, Evolution and Biogeography of Plants, 57(3), 229-235.January 2012
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Tectaria group: Arthropteris Article
Flora Malesiana - Series 2, Pteridophyta, 4(1), 145-149.January 2012
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On Max van Balgooy’s 80th birthday Article
Blumea: Biodiversity, Evolution and Biogeography of Plants, 57(2), 103-104.January 2012
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In memoriam Cees Berg (2 July 1934 – 31 August 2012) Article
Blumea: Biodiversity, Evolution and Biogeography of Plants, 57(3), 199-206.January 2012
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Eriosema arenicola stat. nov. and some notes on Eriosema glomeratum (Leguminosae-Papilionoideae) in West Africa Article
Blumea: Biodiversity, Evolution and Biogeography of Plants, 57(2), 158-159.January 2012