338 UREDINEAE. 



U. minor Schroet. On Tri folium montanum (U.S. America). 

 U. hedysari-obscuri (I). ('.). On Hedysarum in Europe and America. 

 U. scrophulariae (D. ('.). On Kcroplinl'irin and Verbascum (Britain). 

 U. erythronii (D. C.). On Lilium, J///.-W//-/, Scilla, Allium, Fritillaria. 

 (U.S. America). 



(5) Teleutospores alone known; after death of the host fl/c// 

 a resting-period, then germinate: 



U. solidaginis (Sornm.). On Solidago rirgaurea. 



U. phyteumatum (D. C'.). On Phyteuma, accompanied by elongation of 

 the leaf-stalk. 



U. scillarum (Grev.). On SciUn and Muscari. (Britain.) 



U. ornithogali LL'V. On <)nu't/<r>f/<ifiim and <ln<je<t. (Britain.) 



U. colchici Massee. On Colchiciim spectahilis at Kew. 1 



(6) Teleutospores alone known; germinating at once on the 

 living host : 



U. pallidus Niessl. On C'ytisus. 



(7) Only tdcutospores and pycnidia known ; present on the same- 

 host : 



Uromyces Tepperianus Sacc. 2 This causes on twigs and 

 branches of Acacia a deformation consisting in an all-round 

 swelling followed by rupture of the periderm and the develop- 

 ment of brown teleutospore patches on the exposed wood. Tepper 

 found in South Australia shrubs of Acacia salicinia and A. 

 myrtifolia attacked and killed ; the former, near Adelaide, being 

 almost exterminated. He also found it prevalent on Acacia 

 spinescens, A. hakioides, and A. myrtifolia in another part of 

 Australia (Murray Bridge). 



The same fungus was found by Warburg on Albizzia montmni 

 in Java, likewise by Solms-Laubach and Stahl (Fig. 181). 



Magnus 3 found that Warburg's specimens showed the rupture 

 of the rind only on one side, those of Stahl, however, agreed 

 with the Australian specimens. On investigation of the galls, 

 Magnus found a multiseptate and intercellular mycelium with 

 numerous and somewhat branched haustoria. The formation 



l Grevillea xxi., 1892, p. 6. 



'-Liulwig, " Eine iieue Rostkrankheit australischer Akazien," Centralblatt f. 

 lifil-ii r U. Parasitenkunde, 1890, p. 83; further: Htdint/ia, 1889, and Foi-xt- 

 /i<-/t-ii,ifn,-ii'i..*H. Z< i/xchrift, 1894. 



'Magnus, Br-r. d. <l< nlsrli. bolan. Gesell., 1892, p. 195; Hennings, Fungi 

 Warburyiani, //'Wv';//rr, 189.3. 



