LIBRARY 

 NEW YORK 

 BOTANICAL 



PREFACE. *''^''''^'' 



Since the year 1834, in which occurred the death of Rev. 

 Lewis David de Schweinitz, sixty-five years ago, nothing has 

 been done in the study of the fungal flora of this fruitful valley. 

 De Schweinitz published several works, and did a large amount 

 of work, naming many new species. In those days all scientific 

 works were published in Latin, and very few took any interest 

 in the study. 



It was my intention at first merely to publish a list of my 

 collections, growing in the Lehigh Valley, but thinking it 

 would be of very little benefit to this branch of Botany, I 

 concluded to write out some of the principal characters of the 

 natural orders, etc., getting permission from my friend, Prof. 

 Charles H. Peck, State Botanist of New York, to use his 

 specific characters of new species, which he had the kindness 

 to determine for me. Professor Peck, through his annual 

 reports to the State Museum, and correspondence, was my 

 best teacher for the last twenty years. C. G. Lloyd, of 

 Cincinnati, had the kindness to visit me for a number of years, 

 giving me a fresh stimulus to this fascinating study by his 

 assistance in working out some interesting species. The 

 principal works consulted were : Rev. M J. Berkeley's Outlines 

 of British Fungology ; M. C. Cooky's British Fungi: British 

 Fungi by Rev. John Stephenson ; The Mycologic Flora of the 

 Miami Valley and North American Fu?igi, by A. P. Morgan ; 

 Ebi^rtaus and Dr. H, Lenz's Schivaemme des Deutschland in 

 GerM^n. 



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