2 7 8 



Explanation of Plates. 



PLATE XIX. 



(All Figures X 250 unless otherwise stated.} 



UROMYCES. 

 Fig. 



158. Teleutospores, seen from above, of Uromyces fusis-porus on Acacia nerii folia. 



159. Side view of same. 



160. Uredospores of same, with pronounced apiculus and equatorial band of germ 



pores. 



UROMYCLADIUM. 



161. Teleutospores of Uromydadmm simplex on Acacia -pycnantha, part of the 



pedicel being still attached with the remains of the vesicle. (Stained). 



162. Young teleutospores of the same showing the vesicles still attached. (Stained). 



163. Portion of flake of gummy material on leaf of Acacia fycnantha, in which nume- 



rous teleutospores of U. simplex are embedded, nearly all germinating and 

 producing sporidiola. 



[64. Germinating sporidiolum of same. (Stained) 



X 5< 



165. Uredospores of same, being very similar to those of Uromyces iusis-porus, fig. 

 160, though somewhat shorter and broader and' possessing more germ pores. 



