THE RUSTS OF NO^'A SCOTIA. — FRASEK. 389 



KUEHNKOLA Magnus. 



Like Phragmidium but teleutosjx)rei3 colourless, germ-pore 

 under cross wall, and spores genninating when mature. 



Kuehneola albida Magn. 



Kuelineola Uredinis (Link) Arthur. 



0. Pycnia epiphyllous, in small crowded groups on 

 reddened spots. 



1. Aecia wanting. 



II. ITredinia mostly hvpophyllou?, pulverulent, orange- 

 yellow; paraphyses wanting. Uredinio&pores usually ellipsoid, 

 about 15-20 by 20-2 7m; wall colourless, moderately thin, closely 

 \ errucose-echinulate. 



III. Telia hypophyllous, scattered, irregularly roundish, 

 early naked, pulvinate, velvety, yellowish or pure white,, 

 ruptured epidennis inconspicuous. Teliospores cylindrical or 

 cylindrical clavate, 18-24 by 85-110/*, irregularly flattened or 

 coronate above, narrowed below, 5-13 celled, usually 5-6 celled, 

 each cell about 20 by 25,u, trapezodial and articulated to the 

 cell above by a projection containing the pore; wall colourless, 

 thin, the apical thicker above, the other cells thickened above 

 uniformly or only at the lateral projections, smooth or slightly 

 roughened at apex; pedicel colourless, terete, very short, oftx^n 

 seemingly wanting. 



On Euhus hispidus L., Pictou. 



The description is based on that of Arthur in the "North 

 American Flora." The rust does not seem to be common as 

 it was collected only in one place but occurred there quite 

 abundantly on its host. 



TltlPHRAGMIUM Link. 



Teliospores of three cells united in the form of a triangle, 

 a basal cell supporting two others alongside of each other. 



