Arthur: Cultures of Uredineae in 1910 9 



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. Puccini A on Car ex Pennsylvanica 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 

 3^ears this rust was sown on forty other species of hosts without 

 infection.^ 



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

 Scotia, by Professor W. P. Eraser, 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. PucciNiA on Carex stelhdata Good., collected by the writer 

 at Isle au Haut, Mt., was sown on Aster Drummondii, Solidago 

 canadensis, and Ribes Cynoshati, 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 cannabinum, Senecio 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, Chelone glabra (on 2 different dates), 

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



6. PucciNiA perminuta Arth., on Agrostis hyemalis (Walt.) 

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

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

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

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

 canadensis, Thalictrum dioicum, Caulophyllum thalictroides, 

 Anemonella thalictroides, and Isopyrum biternatum, with no in- 

 fection. 



7. Puccinia Ellisiana Thiim., on Andropogon scopa/rius 

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



^ See Jour. Myc. lo : lo. 1904; 11: 51. 1905; 12: 12. 1906; 13: 191. 1907; 

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

 ^ See Mycol. 1: 218. 1910. 



