i28 



I'HE RUST.S OF NOVA SCOTIA. FRA.SEK. 



Telio<porcs of Puccinia 

 aiigustata. 



Fredinia and telia on Scirpus cyperinus (L.) Kunth., ti. 



ruhrotinctus Femald, Pietou. 



The aeeial stage on Lijcopus and the 

 iircdiiiial and tclial on Scirpus are very 

 coninion and nsnally 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 

 1:234. 1909). 

 It may be that the collections on Scirpus ruhrotinclus 



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 when fresh, 

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



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

 naked. Urediniospores oblong, small, echinulafcc. 



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/i; ])edicol slender, coloured, as long as 

 the spore or longer, 



Aecia on Rihes oxyacanthoides L., B. proslraiuni L'Her., 

 Pietou. 



Uredinia and telia on Carex crinita Lam., C. intumescens 

 Pudge, C. pallescens L., C. dehilis Vr. Budgei Bailey, C. 

 a r data Boott., Pietou. 



