38 CEREAL RUSTS OF THE UNITED STATES. 



Two of Farrer's crosses and the following other varieties were rusted 

 50 per cent in 1894 : 



Bellevne Talavera. Kings Jubilee 



Quartz. Clawson. 



Hudsons Early Purple Straw. Lazistan. 



Rattling Jack. Frames Early. 



American Champion Head. Red Tuscan. 



Victorian Defiance. High Grade. 



White Naples. Urtoba. 



Early Baart. Cape Wheat. 

 California Spring. 



The following- varieties were rusted 75 per cent in 1893 : 



Square-head. Red St. Laud. 



Count Walderdorffs. Frames Early. 



Carters Stand-up. Red Tuscan. 



Boutchers Velvet. High Grade. 



Golden Drop. Urtoba. 



Bestehorns. Cape Wheat. 



In Sweden, according to Eriksson (31, pp. 340,341), there was until 

 recently but little difference noted in varieties as regards liability to 

 brown rust (Puccinia dispersa), although his experiments showed great 

 differences with respect to yellow rust (P. glumarum). However, in 

 1890, when the brown rust was unusually abundant and severe in that 

 country, and when the teleutospores were for the first time observed on 

 the stems (sheaths), at least to any great extent, there was a great dif- 

 ference in the amount of this rust on the different varieties. In another 

 account of the rust that year (27, pp. 248-251) Eriksson divides the 

 varieties tested into three classes, according to their degree of rustijiess. 

 Class 1 includes the varieties free from rust, at least as far as the 

 sheaths are concerned; class 2 includes the varieties sparingly or con- 

 siderably rusted ; and class 3 includes those badly rusted. Examples 

 of class 1 are — 



Horsefords Pearl. Michigan Bronze. 



Scholeys Square-head. Kinver Square head. 



Ble a Epi Carre. Count Walderdorlfs. 



Examples of class 3 are- 

 Frankenstein. Manchester. 

 Grevenhagen. Shireft's Square-head. 

 Hickling. Blood Red. 

 Red Chafi" Danzig. Beselers Brown Thick-head. 

 Hungarian White. White Club Spelt. 



In India very little has been demonstrated concerning the liability of 

 different varieties to rust, though various experiments with wheat have 

 been conducted for many years in different provinces of that country. 

 In the Central Province, where P. rubigo-vera, or " gerwa," as the natives 



