FUNGI OF NOVA SCOTIA. MACKAY. 125 



Peridermium balsameum Peck. The aecidia are white, 

 arranged in two irregular rows on the under side of the leaves. 

 The whole leaf takes on a bleached appearance. I have only 

 found this species occurring at considerable altitudes. Pictou, 

 CLM. 



Peridermium decolorans. Peck. On Picea rubra. Pictou, 

 CLM. 



Peridermium elatinum (A. & S.) K. & S. On Abies 

 balsamea, causing the formation of " witches' brooms." 

 Pictou, CLM. 



Puccinia suaveolens (Pers.) Rostr. Pictou, appearing 

 throughout spring and summer on the leaves and stems of the 

 Canada thistle. Affected plants appears very rarely to mature 

 seed if at all, CLM. On leaves of Carduus lanceolatus. New 

 Glasgow, WPF. 



P. taraxaci Plow. On Taraxacum officinale. Pictou, 

 CLM. 



P. coronata Corda. Common on leaves of Avena sativa. 

 Pictou and New Glasgow, CLM, WPF. 



P. rubigo-vera (DC.) Wint. On leaves of Agropyron vul- 

 gare. New Glasgow, WPF. 



P. orbicula Peck and Clinton. On Nabalus. New Glas- 

 gow, WPF. 



P. menthce Pers. On Mentha. Piedmont Valley, WPF. 

 Pictou, CLM. 



P. circcece Pers. On Circcea. French River and New 

 Glasgow, WPF. Saltsprings, Pictou, CLM. 



P. cicutce Larch. On leaves of Cicuta maculata. Piedmont 

 Valley, WPF. Pictou, CLM. 



P. asteris Duby. Common on Aster macrophyllum. West- 

 ville, WPF. 



P. violce (Schum.) DC. Common on Viola. Pictou, 

 CLM and WPF. 



P. claytoniata (Schw.) Syd. On Claytonia virginica. 

 Loch Broom, WPF. 



