THE BUSTS OF NOVA SCOTIA. BY WILLIAM POLLOCK 

 FKASER, M. A., Macdonald College, P. Q. 



Read 23rd May, 1910. 



This paper embodies the results of field and microscopic 

 studies of the rusts of Nova Scotia carried on during the years 

 1908 and 1909.* A few collections were made in 1906 and 

 1907, but careful and systematic study was begun in the 

 summer of 1908 and has been continued since that time. The 

 most of the collections were made near Pictou and in the 

 surrounding districts, so that it might seem more appropriate 

 to name the paper "The Busts of Pictou County," but it was 

 thought best to include all the collections made in the province, 

 thus the more inclusive title is used. 



Scarcely any attention has been given to this interesting 

 group of fungi in Nova Scotia. The only references that have 

 been found are in Dr. MacKay's "Fungi of Nova Scotia" and 

 "First Supp. List." In these papers (Trans. N. S. Inst. of 

 Science, 11:141. 1905; 12:124-126. 1908), the following 

 species are listed: Puccinia graminis, Gymnosporangium 

 Juniperi, Gymnoconia interstitialis, Coleosporium Solidaginis, 

 Melampsora Medusae, Puccinia acuminata, P. Taraxaci, P. 

 sessilis (?), P. suaveolens, P. coronata, P. Menthae, P. 

 Circaeae, P. Cicutae, P. Violae, P. Asteris, P. orbiculata, 

 P. daytoniata, P. rubigo-vera, Uromyces Trifolii, U. caladii, 

 Phragmidium subcorticium, Triphragmium clavellosum, 

 Chrysomyxa Pirolae, and the forms Rostelia laceraia, Uredo 

 Agrimoniae, Peridermium 'balsameMm, Per. decolorans and 

 Per elatinum. 



Of the species named in Dr. MacKay's list I now regard 

 Phragmidium subcorticium as Phragmidium americanum, 

 Uredo Agrimoniae is the uredinial stage of Pucciniastrum 



* Revised to include collections and studies during 1910 and 1911. 



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