334 VREI>INKAK. 



U. appendiculatus (Pera.), [U. ////".'.//'' U'ers. >]. On -p-cics 



7 ".>-. (Britain and CT.S. America./ 

 U. primulae Lev. On /'////'/" ///V.s/'/v 



U. limonii <1. '.'./. < >n Armeria and ,V^ ///>,. (Britain and 

 r> Amerif 



U. polygon! (Pers.). On /*<,/////( -,<///,/. and A'"///* ./-. (Britain 

 and CT.S. Arneri' 



U. acetosae > hroet. On Rumex. 

 U. silenes O'-hlecht.j. On .<//.,/. and J)'m n.th m. 

 U. euphorbiae ^.-hwein. >. On ^'///y// '//./" Preslii in Italy, 

 an>: - me othei s in America. - 



U. geranii (D. ( '. . ' 'u ' ieranium-. ' Ihitain and I F.S. Am'-rica.) 

 U. betae (Persw). ' 'u .Mangel Wurzel and l;<i. iJlritain 

 and U.S . . . 



U. parnassiae (D. C.). 



U. salicorniae (D. C.). 



U. valerianae (Schum.). On Faleriana dioiea ' liritain;. 



permogonia) a '.produced on oru the 



- u,,, I teleutospores ',///, ii.mjtli.tr //< 



Uromyces pisi 'l''.-rv; < Ilritain; I'*-a-ri:- ured'.-;.'..n-s 



and teleutospores are developed in various : /' urn, 



I. and . The teleutospo: finely punctui 



:i'lia appear on the undei : the leaf of /.'"///" 



6/// 1 'fid are preceded by pycnidia. 



Attacked plants of Eapliorli/i. become completely changed in 



ir ap; e. Th- much elongated, and as a 



mle r<- nbranched. Fl'. re seldom or never produced ; 



1 by mycelium and deformed. The 



.ort. th. \d rounded-of!'; they have a pale-green 



and are di . other on the shoot. Th'-ir 



,-rably modified. AVakr 



f the mesophyll become enlarged, while no 

 collenchyi. -eloped in the rib-. Fentzliu^ 3 _ the 



foil- . _ _ rmal cells becon.' '.omata 



more on the upper surface of the leaf, and f> 



on the 1 the ! I - below the upper leaf- 



]>- treatment in .\'. /' .'. . 1. (ion, 



. 



_ 



. . ' _ 



.' 



