ACKNOWLEDGMENTS 



For permission to base diagrams on illustrations in the books 



mentioned we are indebted to the following : — 



Messrs George Bell & Sons Ltd. for Fritsch and Salisbury, 

 Plant Form and Function ; British Museum (Natural History) for 

 Museum Catalogue of British Basidiomycetes ; the Cambridge 

 University Press for West's Alger ; Fritsch, Structure and 

 Reproduction of the Alga ; Bower, The Ferns ; D'Arcy Thompson, 

 Grozvth and Form ; Messrs J. & A. Churchill Ltd. for Stevens, 

 Plant Anatomy ; McGraw-Hill Book Co. Inc. for Smith's 

 Crvptogamic Botany ; Fames and McDaniel, Introduction to 

 Plant Anatomy ; Fames, Morphology of Vascular Plants ; Sharp, 

 Introduction to Cytology and Fundamentals of Cytology ; Messrs 

 Macmillan & Co. Ltd. for Haberlandt, Physiological Plant Anatomy, 

 and Strasburger's Textbook of Botany ; Messrs M. Nijhoif for 

 Manual of Pteridology, edited by Verdoorn ; the Oxford 

 University Press for de Bary, Comparative Morphology of Fungi, 

 Bacteria, and Mycetozoa, and Comparative Anatomy of the 

 Phanerogams and Ferns ; the Ray Society for Groves and 

 Bullock-Webster, British Charophyta ; the University of Chicago 

 Press for Jeffrey, Anatomy of Woody Plants, and Coulter and 

 Chamberlain, Morphology of Gymnosperms ; and the executors of 

 the late Professor R. A. Buller for Researches on Fungi. 



The following works and journals have also been consulted, 

 to which we wish to make due acknowledgment : — • 



Oltmanns, Morphologic und Biologic der Algen ; Pascher, 

 Susszuasserfiora Deutschlands, Osterreich und der Schzveiz ; Gluck, 

 Blatt und Bliiten Morphologic ; Zimmerman, Die Phylogenie der 

 Pflanzen ; Goebel, Organographie der Pflanzen, Gustave Fischer, 

 Jena ; Linsbauer, Handbuch der Pflanzenanatomie, Gebr. 

 Borntraeger, Berlin ; Velenovsky, Morphologic der Pflanzen, 

 Prague ; Fichler, Blutendiagramme, Fngler, Das Pflanzenreich 

 " Droseraceae,'' Haberlandt, Die Sinnesorgane der Pflanzen, 

 Fngelmann, Leipzig ; the American Journal of Botany, Annals of 

 Botany ; Annals of the South African Museum ; Anjiales 

 Mycologici ; Botanical Gazette ; Botanical Review ; Comptes 

 Rendus des Travaux du Laboratoire Carlsberg ; Journal of 

 Agricultural Research ; Journal of the Linnean Society ; Journal 

 of the Royal Microscopical Society ; Memoirs of the American 

 Academy of Arts and Sciences ; New Phytologist ; Philosophical 

 Transactions of the Royal Society ; Transactions of the American 

 Microscopical Society ; and the Transactions of the Royal Society 

 of Edinburgh. 



