30 Mycologia 



by the writer at Lima, Ind., was sown on Napaea dioica, Ambrosia 

 trifida, Aster Drummondii, Boltonia asteroid es, Cacalia reniformis, 

 Laciniaria spicata, Rudbeckia laciniata and Senecio obovatus. 

 None of the trials resulted in infection. 



3. Puccinia on Carex gravida Bailey, sent by Rev. J. M. Bates 

 from Red Cloud, Neb., was sown on Abronia umbellata, Vernonia 

 arkansana, and twice on Artemisia dracunculoides, with no infec- 

 tion. Similar material from the same region has been sown in 

 previous years upon forty-four other species of hosts with nega- 

 tive results. 5 



4. Puccinia on Carex sp., sent by Mr. C. W. Edgerton from 

 Ithaca, N. Y., was sown on Iris versicolor twice, with no infec- 

 tion. This was the culmination of a series of observations to as- 

 certain the telial form belonging to aecia on Iris, which had been 

 noticed for a number of seasons in one locality near the town of 

 Ithaca. Four collections taken from the close vicinity of the 

 rusted Iris were sent for trial in 1907, two of which grew well on 

 Aster paniculatus, but not on Iris, while the other two failed to 

 germinate. All four of these collections agreed morphologically 

 with Puccinia Caricis-Asteris Arth. In continuation of the search 

 for the true alternate form for the Iris rust, Mr. Edgerton sent 

 this season from practically the same spot a rust on an undeter- 

 mined Carex, having morphological characters quite unlike those 

 of P. Caricis-Asteris, and approximating, if not identical with, 

 P. quadriporula Arth. As no positive results were obtained from 

 this material the identity of the alternate form of the aecial rust 

 on Iris still remains in doubt. 



5. Puccinia Dulichii Syd., on Dulichium arundinaceum (L.) 

 Britt., collected at Seaford, Del., by Mr. H. S. Jackson, was 

 sown on Decodon verticillatus, Smilax hispida, Lysimachia quad- 

 rifolia and Senecio obovatus, with no infection. 



6. Puccinia emaculata Schw., on Panicum capillare L., col- 

 lected at Fayette, Iowa, by Prof. Guy West Wilson, was sown on 

 Macrocalyx Nyctelea, Hydrophyllum virginicum, Amorpha fru- 

 ticosa, and Napaea dioica, with no infection. Similar material 

 was sown in previous seasons on twenty-three other species of 

 hosts. 6 



B See Jour. Myc. 10: 10. 1904; 11: 51. 1905; 12: 12. 1906; 13: 191. 

 1907; and 14: 10. 1908. 



