THE RUSTS OF NOVA SCOTIA. FRASER. 



Uredinia and telia on Scirpus cyperinus (L.) Kunth., S. 

 rubrotinctus Fernald, Pictou. 



The aecial stage on Lycopus and the 

 uredinial and telial on Scirpus are very 

 common and usually found closely 

 associated. The aecia appear in the 

 early part of July. Arthur worked out 

 the connection between the stages in 

 1899 (Bot. Gaz. 29 :273. 1900) and has 

 confirmed his results several times. 

 (Jour. Myc. 8:53. 1902; 11:58. 1905; 

 13:196. 1907; 14:14. 1908; Mycologia 



Telio<pores of Puccinia ,904. -IQAQN 

 angustata. 1 .*o4. IVOV ). 



It may be that the collections on Scirpus rubrotinctus 

 represent a distinct species. 



Puccinia albiperidia Arth. 



0. Pycnia amphigenous, small, pale orange. 



1. Aecia hypophyllous, small, in somewhat circular 

 clusters, substratum scarcely thickened; peridia white, low, 

 margin incised, reflexed. Aeciospores pale yellow ^vhen fresh, 

 sub-globose,, 15-20/* in diameter; wall thin, smooth. 



II. Uredinia hypophyllous, small, round or oblong, soon 

 naked. Urediniospores oblong, small, echinulate. 



III. Telia hypophyllous, globose or oblong, pulvinate, 

 dark brown. Teliospores oblong-cuneate, apex rounded or 

 obtuse, thickened at apex, slightly or not constricted at the 

 septum, 17-24 by 31-45/*; pedicel slender, coloured, as long as 

 the spore or longer. 



Aecia on Ribes oxyacanthoides L., E. prostratum L'Her., 

 Pictou. 



Uredinia and telia on Car ex crinita Lam., C. intumescens 

 Rudge, C. pallescens L., C. debilis Yr. Rudgei Bailey, C. 

 arctata Boott., Pictou. 



