422 THE UUSTS OF NOVA SCOTIA. — FRASEB, 



The coimectiou of the aecial stage was shown by cultures 

 in 11>04 by Arthur. (Jour. Myc. 11:62. 1905). He con- 

 firmed these results by later cultures. 



Puccinia perminuta Arth. 

 & I. Pycnia and aecia unicno-wTi. 



II. ITredinia not collected. 



III. Telia mostly hypophyllous, rounded, oval or chiefly 

 linear, dark brown, remaining covered by the epidermis. 

 Teliospores variable, usually oblong, truncate or rounded at 

 the apex, sometimes narrowed toward the base, 10-16 by SO- 

 SO//.; wall brown, rather thin except at the apex, there much 

 thickened, lO/x or less; pedicel very short. 



On Agrostis alha L., Pictou, August, 1910. 



Only telia were present in the collections of this rust, and 

 no description of the uredinia is at hand. The determination 

 was made by F. D. Kern. 



Puccinia obscura Schroet. 

 & T. Pycnia and aecia on BeUis jmretuiis L. (Europe). 



II. Uredinia amphigenous, mostly hy]X)phyllous, on 

 irregular yellowish spots, scattered or irregularly distributed, 

 elliptical or oblong, covered for some time by the epidermis, 

 at length naked, pulverulent, yellowish-brown. Urediniospores 

 sub globose, ellipsoid or obovate, 20-25 by 27-35/x; wall rather 

 thick, browm, r.trongly but sparingly eehinulate. 



III. Telia similar to the uredinia but more compact. 

 Teliospores oblong or clavate, 16-20 by 30-48/t, roimded above, 

 sometimes rather acute, base narrowed, constricted at the 

 septum, cells .'>eparating easily ; wall pale yellowish-brown, 

 somewhat thickened at the a|)ex, about 3-5/i, smooth ; pedicel 

 mostly hyaline, usually short/cr than the spore. 



