North American Species of Puccinia on Carex 227 



cinia vulpinoidis will be noted as occurring on the list. This is a 

 form in which the telia are long covered by the epidermis and it 

 was not suspected for many years that it might belong in this 

 group. Numerous cultures were attempted on a variety of 

 plants known to bear aecia but without success. A careful 

 morphological study, fortunate field observations, together with 

 a consideration of the range of hosts finally led to the belief that 

 it belonged here. Cultures as well as hosts indicate that it is the 

 Solidago race, all attempts to cultivate it on Aster having failed 

 (See Mycologia 7:79-81). The long covered condition of the 

 telial sorus seems to be associated with structural features of the 

 host. Cultures which have shown that Puc. Dulichii is but a race 

 of this large .species are interesting because it is the only case 

 where a Carex rust has been shown to occur on a telial host not 

 belonging to the genus Carex. The report of its culture will be 

 found in the reference to Mycologia above cited. 



15. Puccinia Peckii (De Toni) Kellerm. Jour. Myc. 8 : 20. 1902 



Aecidiiim Oenothcrae Mont. Hist. Chile 8:37. 1852. Not Puc- 

 cinia Oenotherae Vize. 1877. 

 Aecidium Oenotherae Peck, Ann. Rep. N. Y. State Mus. 23:60. 



1873- 



Aecidium Peckii De Toni, in Sacc. Syll. Fung. 7: 790. 1888. 

 Puccinia ludibunda Ellis & Ev. Proc. Phil. Acad. 1893: 153. 1893. 

 Aecidium Gaurae Ellis & Ev. Erythea 1:205. 1893. 

 Dicaeoma ludibundum Kuntze, Rev. Gen. 3 3 : 469. 1898. 

 Dicaeoma Pecki Arth. Proc. Ind. Acad. Sci. 1903 : 149. 1904. 



O & I. Pycnia and aecia on Gaura, Onagra, Meriolix, and 

 Pacylophus spp. (For cultures see Jour. Myc. 8:20. 1902; Bot. 

 Gaz. 35:13. 1903. Jour. Myc. 11:58. 1905. 12:15. 1906.) 



II. Urediniospores broadly ellipsoid or obovate, 15-20 X 21- 

 26 fx) wall golden-brown, 1-1.5^, finely echinulate, the pores 2, in 

 the upper part. 



III. Teliospores clavate-oblong, . 13-19X32-55^, the apex 

 rounded or truncate, usually narrowed at the base, slightly con- 

 stricted at the septum ; wall chestnut-brown, paler below, about 

 1.5 fx, thicker at apex 7-11/x ; pedicel one half to once length of 

 spore, nearly colorless. 



