414 THE RUSTS OF NOVA SCOTIA. FKASER. 



of Puccinia graminis. Arthur (Mycologia 1:231. 1909) 

 reports several unsuccessful trials to infect the barberry with 

 this rust, nevertheless he expresses his agreement with Kern's 

 conclusions. 



This rust has only recently attracted attention in North 

 America. It seems to be rapidly increasing. I have found it 

 rather common on timothy growing by the roadsides and in 

 shaded places in fields. Here both the uredinial and telial 

 stages are developed, the latter appearing late in the fall. The 

 uredinial stage was common on the after-grass in hay-fields 

 about Pictou. It may yet do a considerable, amount of injury 

 to the hay crop, but probably will not be sufficiently developed 

 before the hay is harvested to do serious damage. 



Puccinia Lolii Neils. 

 Puccinia coronifera Kleb. 



& I. Pycnia amphigenous, usually in small groups,, 

 sometimes abundant, on the spots bearing aecia, honey-coloured. 



I. Aecia hypophyllous or peticolous, on yellowish or 

 yellowish-purple spots, causing distortion of the petioles, cylin- 

 drical, rather low, margin whitish, lacerate, revolute. Aecio- 

 spores irregular, globose, about 19-25/*; wall colourless, finely 

 verrucose; contents orange. 



II. Uredinia amphigenous, oval or linear, pulverulent,, 

 orange. Urediniospores globose, sub-globose or ovate, 16-24 by 

 20-30/* ; wall orange, echinulate, pores 3 or 4, sometimes a few 

 colourless, capitate paraphyses present. 



III. Telia hypophyllous, oblong or linear, often confluent 

 and crowded, long covered or remaining covered by the- 

 epidermis, black, Teliospores elongated clavate, 16-22 by 33- 

 70/*, tapering toward the base, apex truncate with irregular, 

 blunt, curved processes, variable in size and shape, not or 



