56 



thus obtained, the members of the Royal Society are urgently 

 requested to promote this work as much as lies in their power. 

 If desired I will readily undertake with my mycological friends 

 the identification of the collected material. 



LIST OF AUSTRALIAN UREDINE^. 



Of the Rust Fungi rather more than 1,200 species are known, 

 and in a small district of Germany, containing a few square 

 miles, several hundred species are to be found. From the whole 

 of Australia only some thirty species, as enumerated here, are 

 known. 



For the sake of brevity, the three generations, ^cidium, Uredo, 

 and Teleutospores, are indicated respectively by the Roman 

 numerals I., II., III. 



UromyceS VesiCUlOSUS, Wint. — On Zygophyllum ammophilum, 

 II., III., Spencers' Gulf (Baron F. v. Mueller). 



" fusisporUS, Cke. et. Mass.— On Acacia salicin 



Melbourne (Baron F. v. Mueller), II., III. 



" dig'itatUS, Wint. — On Acaia notabilis, II., III., 



Gawler (J. G. O. Tepper). 



*' TepperianuS, Sacc. — On Acacia saHcina and A. 



iiiijrtifolia, III., Mount Lofty (Tepper). 



" Microtidis, Cke. — On Microtis porrifolia, III., N. 



S. Wales. 



" LimOSellse, Ludw. — On Limosella aqiiatica, I., III., 



Kangaroo Island (Tepper). 



Puecinia graminiS, Rers. (Corn Rust). — On Arena satira, II., 

 III., Melbourne (Reader), I. (^cidium), not yet 

 known from Australia, elsewhere on Berhe^^is sp. 



rubigo-vera, D. C. (Red Rust), (L), II., III. In 

 Europe the ^cidium of this rust, which is very 

 injurious to cereals (Rye and Barley), also de- 

 velopes upon Boragineje (Anchusa, &c.) ; from 

 Australia only II. and III. are known as yet, on 

 Foa annua (Melbourne, Reader), Alopexurus 

 (Coromby, Victoria, together with Sclerospora 

 macrospora, Sacc. ; Tepper), and wheat (all the 

 colonies). 

 " bullata (Pers.), Schroeter. — On Umbellifera?, I., II., 



III. In Europe also an enemy for cultivated 

 plants, such as Celery, tfcc. 



" Prenanthidis (Pers.), Fuchel. 



" rimOSa (Lk.), Wint. — On Isolepis nodosa, near Mel- 



bourne (Reader). 



