PARASITIC FUNGI OF NEW JFKSEY 

 Introduction 



This work is the gradual outgrowth of a plan devised to increase 

 the knowledge pertaining to the parasitic fungi of the state of New 

 Jersey. In developing this plan the writer drew freely from such 

 works as, Catalogue of Plants Found in New Jersey by Dr. N. L. 

 Britton (in the Geological Survey of Neiv Jersey, Report of the 

 State Geologist, 1889, v. 2, pt. 1, p. 25-642), reports and bulle- 

 tins of the New Jersey Agricultural Experiment Station, North 

 American Pyrenomycetes by Ellis and Everhart, North American 

 Flora, Mycologia, Bulletin of the Torrey Botanical Club, Grevillea, 

 Proceedings of the Philadelphia Academy of Natural Science, and 

 publications of the United States Department of Agriculture. 



The writer had ample opportunity during the summers of 1912 to 

 1917, inclusive, to collect and preserve parasitic fungi in the state 

 of New Jersey. This material and "fungi exsiccati" deposited in 

 the herbaria of the New Jersey Agricultural Experiment Station 

 and the New York Botanical Garden afforded the writer excellent 

 opportunities to study the fungous parasites. 



The plan formulated at first was to list all fungous parasites 

 recorded for the state of New Jersey and supplement diis list with 

 their descriptions and drawings of specimens illustrating the respec- 

 tive genera. This plan, however, was abandoned because many 

 specimens collected and recorded by the pioneer botanists had been 

 incorrectly determined. It was finally decided to publish descrip- 

 tions and illustrations only of those species which had been studied 

 in the laboratory. 



Whenever possible, specimens collected in New Jersey were 

 studied. When no New Jersey material was available specimens 

 from neighboring states were examined. 



To gain a broader view of the nature of fungous parasites, cul- 

 tures were made in many cases on agar media or on the natural host. 

 Whenever possible, therefore, spore measurements and the growth 

 on nutrient media were compared with those displayed by the para- 



(3) 



