North American Species of Puccinia on Carex 217 



Caeoma Grossulariatum Link, in Willd. Sp. PI. 6 2 : 59. 1825. 

 Puccinia Pringsheimiana Kleb. Zeits. Pflanzenkr. 4:194. 1894. 

 Puccinia Magnusii Kleb. Zeits. Pflanzenkr. 5: 79. 1805. 

 Puccinia Ribis-nigri-acutae Kleb. Zeits. Pflanzenkr. 6 ; 327. 1896. 

 Puccinia Rib esii-Pseudocy peri Kleb. Prings. Jahrb. 34 : 391. 1899. 

 Puccinia Ribis-nigri-Paniculatae Kleb. Prings. Jahrb. 34 : 393. 

 1899. 



Puccinia albiperidia Arth. Jour. Myc. 8: 53. 1902. 

 Aecidium albiperidium Arth. Jour. Myc. 8: 53. 1902. 

 Puccinia riparia Holway, Jour. Myc. 10 : 163, in part. 1904. 

 Dicaeoma albiperidium Arth. Proc. Ind. Acad. Science 1903 : 145. 

 1904. 



Puccinia quadriporula Arth. Bull. Torrey Club 34: 586. 1907. 

 Puccinia Ribesii-Caricis Kleb. Zeits. Pflanzenkr. 17:134. 1907. 

 Puccinia uniporula Orton, Mycologia 4:201. 1912. 



O and I. Pycnia and aecia on Ribes spp. (For cultures see 

 Jour. Myc. 8:53, 1902, 11:58, 1905, 12:14, 1906; Mycologia 7: 

 66, 1915.) 



II. Urediniospores broadly ellipsoid or obovoid, 15-21 X 19- 

 24 fx (rarely larger, up to 25 X 34/*) ; wall golden-brown, 1.5-2 jx 

 thick, finely and evenly echinulate, the pores 3, or sometimes 4, 

 equatorial, or sometimes wholly or in part 1, close to the hilum. 



III. Teliospores broadly clavate, 15-21 X 32—58 fx, rounded or 

 truncate at the apex, narrowed below, slightly constricted; wall 

 cinnamon-brown, 1-1.5/* thick, thicker at apex, 4-10/x; pedicel 

 one-half length of spore or less. 



On Carex acutina, aquatilis, arctata, arctata X flexilis, brun- 

 nescens, canescens, castanea, complanata, concolor, conoidea, 

 crinita, cryptocarpa, digitalis, disperma } eburnea, festivella (for- 

 merly det. as f estiva), flava, flexuosa, Goodenowii, gracillima, 

 gynandra, Haydeni, hirti folia, Hitchcockiana, intumescens, Kel- 

 loggii, lanuginosa, laxiflora, macro chaeta, magnifica, maritima, 

 Mertensii, monile, nebraskensis, obtusata, pallescens, prasina, re- 

 trorsa, scabrata, sitchensis, spectabilis, squarrosa, stipata, stricta, 

 stygia, tetanica, trisperma, typhina, virescens. 



Distribution : Northern United States and southern Canada 

 from Nova Scotia and New Jersey west to northern New Mex- 

 ico, Oregon, and British Columbia, and in Alaska ; also in Europe. 



Exsiccati: Barth. N. Am. Ured. 447, 638, 843, 945, 1048, 



