Arthur: Cultures of Uredineae in 191 



/ 7 . 



mination of the spores were sown on plants in the hope of dis- 

 covering the alternate host but without securing infection. The 

 following are recorded to serve for reference in future studies. 



1. Puccinia on Car ex Pennsylvania L., collected at Kulm, 

 N. D., by Dr. J. F. Brenckle, was sown on Laciniaria punctata 

 (on 4 different dates), L. spicata, Dirca palustris (2 dates), and 

 Meriolix serrulata (2 dates), with no infection. In preceding 

 years this rust was sown on forty other species of hosts without 

 infection. 2 



2. Puccinia on Carex tenella Schk., collected at Pictou, Nova 

 Scotia, by Professor W. P. Fraser, was sown on Phryma lepto- 

 stachya (on 2 different dates), with no infection. In 1909 a simi- 

 lar collection was sown on six other species of hosts with no 

 results. 3 



3. Puccinia on Carex stellulata Good., collected by the writer 

 at Isle au Haut, Me., was sown on Aster Drununondii, Solidago 

 canadensis, and Ribes Cynosbati, with no infection. 



4. Puccinia on Carex trisperma Dewey, collected at Pictou, 

 Nova Scotia, by Professor W. P. Fraser, was sown on Myrica 

 cerifera, Apocynum cannabinnm, Senccio Douglasii, and Soli- 

 dago caesia, with no infection. 



5. Puccinia on Carex arctata Boott, collected at Pictou, Nova 

 Scotia, by Professor W. P. Fraser, was sown on Lysimachia 

 terrestris, L. quadrifolia, Chclone glabra (on 2 different dates), 

 Rudbeckia laciniata, and R. triloba, with no infection. 



6. Puccinia perminuta Arth., on Agrostis hy emails (Walt.) 

 B. S. P., collected by the writer at Isle au Haut, Me., was sown 

 on Orchis spectabilis and Actaea alba, with no infection. Another 

 collection on A. perennans (Walt.) Tuckerm., collected at Pictou, 

 Nova Scotia, by Professor W. P. Fraser, was sown on Aqnilcgia 

 canadensis, Thalictrum dioicum, CaulophyUum thalictroides, 

 Ancmonella thalictroides, and Isopyrum bitcrnatum, with no in- 

 fection. 



7. Puccinia Ellisiana Thum., on Andropogon scoparius 

 Michx., collected by Dr. J. F. Brenckle, at Kulm, N. D., was 



2 See Jour. Myc. 10 : 10. 1904; IX: 51. 1905; 12: 12. 1906: 13: 191. 1907; 

 14: 9. 1908; and Mycol. 1: 229. 1909. 

 'See Mycol. 1: 218. 1910. 



