420 THE RUSTS OF NOVA SCOTIA. ERASER. 



Puccinia perplexans liowr. 



0. Pycnia not described. 



1. Aecia hypophyllous or petiolicolous, on rounded yellow 

 spots, in elongate or rounded groups, cup-shaped or cylindrical, 

 margin white, incised. Aeciospores angular-globose, finely 

 verrucose, orange, 18-27/* in diameter. 



II, Uredinia chiefly epiphyllous, scattered, chiefly oblong 

 or linear, yellowish brown. Urediniospores sub-globose or 

 ovate, 16-20 by 19-27/u; wall rather thick, pale yellowish, 

 echinula/te. 



III. Telia chiefly hypophyllous, scattered, small, oblong 

 or linear, about 1-1J mm. long, covered by the epidermis, 

 blackish. Teliospores mostly oblong-clavate or clavate, apex 

 rounded, truncate, rounded or obliquely conical, somewhat 

 thickened at the apex, slightly constricted at >the septum, 16-24 

 by 36-60/*; wall brown, darker above, smooth, thickened some- 

 what at the apex; pedicel very short. 



Pycnia and taecia on Ranunculus acris L., Pictou, June, 

 1911. 



Uredinia and telia on Alopecurus pratensis L., Pictou. 



This species does not seem to have been previously collected 

 in North America. Cultures by the writer confirmed what had 

 already been established by European investigators, that the 

 aecia are produced on Ranunculus acris L. (See Mycologia 

 4:179. 1912). 



Puccinia anthoxanthi Fuck. 

 & I. Pycnia and aecia unknown. 



II. Uredinia amphigenous, mostly epiphyllous, on 

 indefinite yellow spots, scattered or aggregated, elliptical or 

 linear, soon naked, small, yellowish-ferruginous, capitate 

 paraphyses present. Urediniospores mostly ovate or obovate, 

 18-22 by 23-33/x, finely echinulate, yellowish. 



