The Lichens and Lichenicolous Fungi of Belgium and Luxembourg ...

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THE LICHENS OF BELGIUM AND LUXEMBOURG. AN ANNOTATED CHECKLIST 61
Acknowledgements
e would like to express our warmest thanks to all colleagues who helped us with
the identification or re-examination of critical specimens. Although it is absolutely
impossible to enumerate them all here, we would like to mention particularly Prof./Dr P.
Clerc, B. J. Coppins, D. L. Hawksworth, P. W. James, F. Rose, R. Santesson and T.
Tønsberg. A considerable number of chorological and ecogeographical data became
available through A. M. Brand and P. P. G. van den Boom who made important
collecting trips to Belgium and Luxembourg during the past 20 years: their outstanding
contribution is acknowledged by associating them to the publication of this volume. The
‘Bryologische Lichenologische Werkgroep’ of the ‘Koninklijke Nederlandse Natuurhistorische
Vereniging’ organized seven excursions to Belgium or Luxembourg between
1977 and 1999, during which the lichen flora of the visited localities was carefully
recorded and eventually published, yielding a considerable amount of data. As our own
field work mainly concentrated on the SE districts of the study area, we appreciate that
Prof. M. Hoffmann kindly allowed us to use the very detailed mapping studies of
corticolous lichens in Flanders, available in the unpublished theses of himself and
several of his students.
Special thanks are due to Prof. J. Lambinon for generously providing us with data and
ideas; he also accepted to check the whole manuscript carefully and made many
interesting suggestions.
L. Sparrius provided the Dutch translation of the introductory texts. These have been
checked linguistically by Prof. B. Goffinet and L. Schley (English text) and by Prof. M.
Hoffmann (Dutch text). Of course any mistake or shortcoming is our own responsibility.
Prof. V. Wirth, Prof. M. Hoffmann and Prof. J. Lambinon provided excellent photographs
to illustrate this volume. Prof. N. Stomp, Director of the National Museum of Natural
History, Luxembourg, kindly offered to publish this work: we owe him a great debt. We
also convey our thanks to S. Backes for the great artistic value of the cover of this work.
Finally we very warmly thank our wives Doris and Michèle for their continuous moral
support during the preparation of this volume.
N
Remerciements
ous souhaitons remercier très chaleureusement tous les collègues qui nous ont aidés
à identifier les collections critiques ou qui ont vérifié nos déterminations. Bien qu’il
soit absolument impossible de les citer tous ici, nous aimons mentionner la collaboration
des Prof./Dr P. Clerc, B. J. Coppins, D. L. Hawksworth, P. W. James, F. Rose, R. Santesson
et T. Tønsberg. Une quantité considérable de données chorologiques et écogéographiques
ont été mises à notre disposition par A. M. Brand et P. P. G. van den Boom,
lesquels ont effectué d’importantes prospections de terrain en Belgique et au Luxembourg
pendant les vingt dernières années: leur remarquable contribution est consacrée par leur
association à la publication de ce livre. La ‘Bryologische Lichenologische Werkgroep’ de la