274 



Explanation of Plates. 



PLATE XVII. 



(All Figures X 250.} 



UROMYCES. 

 Fig. 



140. Group of teleutospores of Uromyces -puccinioides on Selliera radicans. 



141. Teleutospores of V '. as-fcerulae on As-perula oligantha. 



142. Uredospores and teleutospores of U. trifolii on Trifolium re-pens. 



143. Uredospores of U . hardenbergiae on Hardenbergia mono-phylla. 



144. Teleutospore of the same. 



145. Two Uredospores of same at top and one teleutospore below. 



146. Section of teleutosorus of V '. atri-plicis on Atri-plex semibaccata The teleuto- 



spores are faintly striate with one prominent germ pore at apex. 



147. Two teleutospores of same at left and four uredospores at right. 



148. Uredospores of U. betae on Beta vulgaris. 



149. Teleutospores of same with prominent hyaline apiculus. 



