Front matter
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Table of Contents
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2
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Preface: Foreword
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5
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Article: Acknowledgements
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8
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Article: Key to the determination of taxa within the family of "Lemnaceae"
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13
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Article: Description of six new species of "Lemnaceae"
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22
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Article: Cytological variation within the family of "Lemnaceae"
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30
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Front matter
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30
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Table of Contents
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30
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Chapter 1: Introduction
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Chapter 2: Material and methods
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32
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Chapter 3: Results
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33
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Chapter 4: Discussion
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91
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Chapter : Summary
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Chapter : Zusammenfassung
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Bibliography
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Article: Proteingehalt, Aminosäurezusammensetzung und Neutralzuckergehalt von Lemnaceen : vorläufige Mitteilung
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102
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Article: Effects of nitrogen and phosphorus upon the growth of some "Lemnaceae"
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118
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Bibliographie: Bibliographie der Familie der "Lemnaceae"
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142
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Register: List of the studied "Lemnaceae" samples : origin and chromosome numbers
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205
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Register: Veröffentlichungen des Geobotanischen Institutes der Eidg. Techn. Hochschule, Stiftung Rübel, in Zürich
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