ACKNOWLEDGEMENTS
I thank everyone who has contributed, directly or indirectly, to both editions of this guide. I am deeply indebted to Charlie Jarvis (Natural History Museum, London), who patiently helped me develop a thorough basic knowledge of the nomenclature of algae, fungi, and plants during my time on the Linnaean Plant Name Typification Project (1994–1997), and John McNeill (Royal Botanic Garden Edinburgh), who took that initial training to a higher level, continuously sharing his profound knowledge and decades of experience during the time I assisted him as Vice-rapporteur (2003–2012), and who also reviewed an earlier draft of this book. I also warmly thank Sandy Knapp (Natural History Museum, London) and John Wiersema (United States Department of Agriculture) for their hard work, good humour, and support as President of the Nomenclature Section and Vice-rapporteur, respectively, for the Shenzhen Congress of 2017; and it was Sandy Knapp who convinced me to write this second edition. Maria Vorontsova (Royal Botanic Gardens, Kew) thoroughly reviewed the manuscript of the first edition of this guide, making many excellent suggestions. Robbert Gradstein and Franz Stadler (Editor-in-chief and Production Editor, respectively) and two anonymous reviewers also provided helpful comments and guidance for the first edition. I thank Lyubomir Penev, Teodor Georgiev, and Slavena Peneva, all at Pensoft Publishers, for the design, layout, and publication of the second edition. I am also grateful to the following (listed in alphabetical order), for advice, encouragement, suggestions, information, and comments: Konstanze Bensch (MycoBank, Utrecht/München), Maarten Christenhusz (Plant Gateway), Vincent Demoulin (Université de Liège), Adam Halamski (Institute of Paleobiology Polish Academy of Sciences), Patrick Herendeen (Chicago Botanic Garden), Heather Lindon (Royal Botanic Gardens, Kew), Karol Marhold (Institute of Botany, Slovak Academy of Sciences, Bratislava; Charles University in Prague), Bruce Maslin (Western Australian Herbarium), Tom May (Royal Botanic Gardens Victoria), Ulrich Meve (Universität Bayreuth), Lyubomir Penev (Pensoft), Rudolf Schmid (University of California, Berkeley), Kevin Thiele (Western Australian Herbarium), the following at the Botanischer Garten und Botanisches Museum Berlin (BGBM), Freie Universität Berlin: Thomas Borsch, Werner Greuter, Wolf-Henning Kusber, and Hans Walter Lack. The following kindly provided and/or granted permission to reproduce published material, images of herbarium specimens, or photographs: American Society of Plant Taxonomists, BGBM Press, Conservatoire et Jardin botaniques de la Ville de Genève, Czech Scientific Society for Mycology, Li Zhang (Fairy Lake Botanical Garden), Linnean Society of London, Missouri Botanical Garden Press, Museo Nacional de Historia Natural (Chile), and Robert Lücking (BGBM). The International Association for Plant Taxonomy, publishers and copyright holders of the first edition, granted permission to publish this second edition and funded its open-access publication. Finally, and once again, I warmly thank my wife, Christine, for continuing to tolerate my many hours devoted to nomenclatural matters.
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