r 



Reed: The mildews of the cereals 355 



/ 



the seed of the various cereals and grasses used in the following 



tests. 



Wash 



^^ 



C, sent seed of Triticitm dicocciim (Black Winter Emmer and 

 White Emmer), T. dicrwn (var. Kubanka), 7! polonicum^ T. Spelta^ 

 Hordeiim distichon^ H. nndttm^ H. vtdgare^ and H. Zeocriton. Vil- 

 morin-Andrieux & Company furnished seed of Hordermi trifiirca- 

 ttiniy Tritictini monococaun^ and T. turgiduui. From the California 

 Agricultural Experiment Station I received seed of Hordenm dis- 

 Uchon, H. tetrastichon, Triticum dicoccum (Black Emmer), Z! dnrnin 

 (varieties Black Don, Chilean, and Kubanka), and T, Spelta. 

 Haage & Schmidt, Erfurt, Germany, furnished seed of a number of 

 plants, among others Hordeiim trifiircatuni^ Triticum moiococcum, 

 and T. titrgiditm. Professor Trelease, of the Missouri Botanical 

 Garden, sent me seed of Triticum dtinun affine^ T compactiun 

 cretictim, and T. monococcum. Professor C. A. Zavitz, of the 

 Ontario Agricultural College, sent seed oi Triticum dicocctwi (Red 

 Emmer, Russian Emmer, Common Emmer, and Black Winter 

 Emmer), and 71 durum (Medeah Spring Wheat, Soretina Spring 

 Wheat, and Wild Goose Spring Wheat). I am especially indebted 

 to Professor Doctor Fr. Bubak, Director of the Botanical Garden 

 at Tabor, Bohemia, for seed of Triticum Freycenetiij T motiococcunt 

 (varieties Hornonannii and vulgare), T Spelta^ T, T/iaoudar^ T 

 Tumouia, T turgidum, Secale dabnaticum^ S> montamun^ S, cereale 

 X Triticum vulgare, Hordeum maritimiun^ and H, Steudelii x H.^ 



trifurcatiun. 



According to Hackel ^^ there are only three distinct species of 

 Triticum in cultivation. Hackel classifies the cultivated wheats as. 



4 



follows ; 



monococcutn L. , Einkorn. 



dicoccum Schrank, Emmer. 



Trilicnm 



SpeUa Hackel, Spelt. 

 sativum \ ( vulgare Hackel, Wheat. 



compacium Hackel, Club Wheal. 

 iurgidiim Hackel, Poulard Wheats 



durum Hackel, Durum Wheat. 



polonicum L. Polish Wheat. 



Hackel classifies the commonly cultivated barleys as follows : 



Ho) 



erectum, mitans, Zeocriton, macrolepis, dcficiens, and nudum ; H, 



