Arthur: Cultures of Uredineae in 1908 233 



in this series or have been recorded by other American or Euro- 

 pean investigators. In a number of cases the previous definite 

 knowledge of the species has been materially extended. 



1. Puccinia Kuhniae Schw., on Kuhnia Hitchcockii A. Nel- 

 son, collected at Marshall, Colo., Feb. 22, 1908, by Mr. E. Bethel, 

 was sown May 14, on Kuhnia eupatorioides. Numerous pycnia 

 appeared May 24, duly followed by abundant uredinia June 4, 

 and telia June 29. This result confirms the work in 1905, 10 and 

 shows that in all probability all collections of rust on this genus 

 of hosts are referable to the one autoecious species. 



2. Puccinia Peckii (DeT.) Kellerm., on Car ex stipata Muhl., 

 collected Oct. 23, 1907, at Lima., Ind., by Mr. George L. Potter, 

 was sown on Onagra biennis (L.) Scop., April 28, and gave 

 pycnia May 9 and aecia May 18, both in great abundance. 11 



3. Puccinia Sambuci (Schw.) Arth., on Car ex lurida Wahl., 

 collected at Lagrange, Ind., by the writer, was sown on Sam- 

 bucus canadensis L. May 15, and gave a great abundance of 

 pycnia May 23, and aecia June I. 12 



4. Puccinia Caricis-Solidaginis Arth., on Carex sparganio- 

 ides Muhl., collected at Lima, Ind., and again at Lagrange, Ind., 

 both by the writer, was sown from the first named locality April 

 1 1 on Aster Drummondii, giving no infection and again May 4 on 

 Soiidago canadensis L., giving abundant infection with pycnia 

 showing May 12, and aecia May 19. From the second locality 

 sowings were made April 15 on Aster paniculatus and Soiidago 

 canadensis, giving no infection on the first host, but abundant 

 infection on the second, showing pycnia April 23, and aecia May 

 5. 13 This result duplicates that obtained in 1905. 



5. Puccinia Eleocharidis Arth., on Eleocharis palustris (L.) 

 R. & S., obtained at Lima, Ind., by the writer, was sown on Eu- 

 patorium perfoliatnm L., May 13, giving rise to pycnia May 22, 



10 Jour. Myc. 12: 23. 1906. 



11 For previous cultures see Bot. Gaz. 35: 13. 1903; Jour. Myc. 8: 55. 

 1902; 11: 58. 1905; 12: 15. 1906; and 13: 195. 1907. 



12 For previous cultures see Bot. Gaz. 35: 14. 1903; Jour. Myc. 8: 55. 

 1902; 12: 14. 1906; and 13: 195. 1907. 



13 For previous cultures see Bot. Gaz. 35: 21. 1903; and Jour. Myc. 12: 15. 

 1906. 



