Publication
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A revision of the family Leeaceae Article
Blumea: Biodiversity, Evolution and Biogeography of Plants, 22(1), 57-100.January 1974
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A note on vessels in Hypolytreae of Cyperaceae Article
Blumea: Biodiversity, Evolution and Biogeography of Plants, 22(1), 149-150.January 1974
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A revision of the genera Salpa Forskål, 1775, Pegea Savigny, 1816, and Ritteriella Metcalf, 1919 (Tunicata, Thaliacea) Article
Beaufortia, 22(293), 153-191.January 1974
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Symplocaceae Article
Flora Malesiana - Series 1, Spermatophyta, 8(1), 205-274.January 1974
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Les Gammaridae (Crustaces, Amphipodes) du Massif Central Article
Bulletin Zoologisch Museum, 3(23), 211-215.January 1974
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Aradidae in the Rijksmuseum van Natuurlijke Historie, Leiden (Hemiptera-Heteroptera) Article
Zoologische Mededelingen, 48(21), 233-247.January 1974
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Parnassiana nova : XLVIII. Zwei neue Unterarten von Allancastria Cerisyi Godart aus Anatolien (Lepidoptera, Parnassiidae) Article
Zoologische Mededelingen, 48(10), 81-83.January 1974
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The lectotypification of Acrostichum acuminatum Willd. and the reinstatement of the name Photinopteris speciosa (Bl.) Presl Article
Blumea: Biodiversity, Evolution and Biogeography of Plants, 22(1), 51-52.January 1974