352 



UREDINEAE. 



aecidia (Aec. parnassiae Schlecht.) on Parnassia palustris. . Spermogonial 

 pycnidia are unknown. 



P. sdrpi D. C. (Britain). Uredo- and teleutospores on Scirpus; aecidia, 

 according to Chodat, = Aec. nymphaeoides on Nymphaea, Nuphar, and Lim- 

 nanthemmn, nymphaeoides. 



Fig. 186.— Puccinia suaveolens on Cirsium arveTise. The plants ai-e abnormally 

 slongated ; the leaves have remained smaller and simpler, and are thickly beset 

 on the lower side with patches of chocolate-brown uredospores. (v. Tubeuf phot.) 



P. eriophori Thiim. Uredo- and teleutospores on Eriophorum latifolium 

 in Siberia and Denmark ; Rostrup gives as the aecidial form Aec. ciuerariae 

 Rostr. 



P. obscura Schroet. Uredo- and teleutospores on Luzula ; aecidia on 

 Bellis perennis (Plowright). (Britain and U.S. America.) 



P. septentrionalis Juel. Uredo- and teleutospores on Polygonum vivi- 

 parum; aecidia (J ec. Sommerfeltii) on Thalictrum alpinum in Scandinavia, 



