312 



with the date and name of the collector if made by another person than 

 the writer. The numbers in parentheses following the date are the 

 writer's accession numbers. Collections made at Seaford, July 9, 1907, 

 at Clayton, July 24, 1907, and at Lewes, August 14, 1907, were made in 

 company with Dr. M. T. Cook. In the case of collections made by Mr. 

 Commons the numbers given are those of his manuscript list. 



An attempt has been made to include in the notes a review of all 

 the American culture woi'k, together with some reference to similar work 

 conducted by European workers. 



A number of field observations which were made at the time of 

 collecting the specimens have since been used by Dr. J. C. Arthur as 

 the basis for successful culture work and have been recorded elsewhere. 

 A considerable number of collections of material for culture work were 

 supplied him, a number of special trips having been made primarily for 

 this purpose, the expenses for which he provided from the funds of the 

 Purdue University Agricultural Experiment Station. Many of the speci- 

 mens collected, especially those on grasses and sedges, were identified by 

 Dr. Arthur or his associates in rust work. Many others, originally de- 

 termined by the writer, were sent him from Delaware for confirmation. 

 Throughout the period of time when the collections were being made, a 

 continuous correspondence was carried on with Dr. Arthur which provetl 

 very stimulating and the writer is under special obligations to him for 

 this assistance. Acknowledgment is also gratefully made to any others 

 who have in any way aided in the work. 



COLEOSPORIACEAE 



1. COLEOSPORIUM CARNEUM (BoSC.) COmb. nov. 



Tiiberculariu caniea Bosc. Ges. Nat. Freunde Berlin Mag. 5:88. 1811. 

 Coleosporium Vernoniae B. & C. Grevillea 3:57. 1874. 

 Peridermium carnewn Seymour & Earle, Econ. Fungi 550. 1899. 

 On Carduaceae: II, III. 



Vernonia noveboracensis (L) Willd., Lewes, Aug. 14, 1907, 



(1680) ; Collins Beach, Oct. 1, 1907, (1912) ; Newark, Oct. 25, 



1907 (1978.) 



Arthur (Mycol. 4:29. 1912), in 1910 proved that PeHdermium 



carneum is genetically connected with Coleosporium Vernoniae. Success- 



