Publication
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A new Canarium (Burseraceae) from Batjan I., Moluccas, Indonesia Article
Blumea: Biodiversity, Evolution and Biogeography of Plants, 27(1), 211-212.January 1981
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The chrysotile of asbestos occurrencesin the Mellid area, NW Spain Article
Leidse Geologische Mededelingen, 52(1), 116-116.January 1981
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The Sternoptychidae (Pisces, Stomiatoidei) of the Amsterdam Mid North Atlantic Plankton Expedition 1980, with a note on specimens intermediate between Argyropelecus aculeatus Valenciennes, 1849 and A. olfersi (Cuvier, 1829) Article
Beaufortia, 31(4), 97-106.January 1981
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On a small collection of living Lejeuneaceae from Peru Article
Mededelingen van het Botanisch Museum en Herbarium van de Rijksuniversiteit te Utrecht, 494(1), 119-130.January 1981
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The Odivelas gabbro complex (Alentejo, Portugal): a Hercynian synorogenic layered intrusion Article
Leidse Geologische Mededelingen, 52(1), 116-116.January 1981
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Het Schellings havikskruid (Hieracium peleterianum Mérat) Article
Gorteria: tijdschrift voor de floristiek, de plantenoecologie en het vegetatie-onderzoek van Nederland, 10(7), 120-129.January 1981
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Florae Malesianae Praecursores LXII. On the genus Thottea (Aristolochiaceae) Article
Blumea: Biodiversity, Evolution and Biogeography of Plants, 27(2), 301-332.January 1981
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Pithosira and Xenoplaca, two dematiaceous Hyphomycete genera from South America Article
Persoonia - Molecular Phylogeny and Evolution of Fungi, 11(3), 387-389.January 1981