374 



Reed : The mildews of the cereals 



o a 



U V 



a 



'C 



4J 



B 



125a 

 127b 



148a 

 1 60a 



TABLE XXIV.— Results with Triticum Thaoudar Boiss, 



Date 



1908 



July 28 

 Oct. 



Nov. 



IC 



19 



2 



10 

 12 



Source of conidia 



Triticum vulgare 



it 

 a 



it 

 ii 



a 



t ^ 



< 



4 

 6 



7 

 9 

 7 



9 



1^ 



4 



4 



4 

 6 



4 



t/1 



o 



c 

 o 



u 



o 



4 



2 

 2 

 2 

 I 



2 



Date 



1908 



Aug 5 

 Oct. 26 

 Nov. 7 



7 



19 

 20 





it 



i 



Results 



Inoc. 

 plants 



f++ 



+++ 

 +++ 



+++ 



Controls 



a ^ 



124b 



^34a 



l6la 



TABLE XXV.— Results with Triticum Tu7nonia Schrad. 



Date 



1908 

 July 28 



Oct. 21 

 Nov. 



10 

 12 



Source of conidia 



Triticum vulgare 







Cfl 



i£ 



tfl 







'0 





plan 

 lated 



c 







w. rt 



: »». 3 ' 



U 



-3 







(^4 



d * ^^^'^ 



■ ^^ 







be 

 < 



i 



c 



2 



J 



4 



3 



8 ' 



I 



1 







7 



2 



1 







9 



3 



I 



Date 



1908 



Aug. 5 

 Oct, 30 

 Nov. 



<< 



19 

 21 



Tnoc. 

 plants 



Results 



+++ 



+++ 

 +++ 



Controls 



« » 





3 



113a 

 114b 

 117b 

 124c 

 126b 



134b 

 165c 

 167a 



1 68a 



TABLE XXVI. — Results with Triticum titrgiduml^,^ 



Date 



1908 



July 14 



*' 14 

 22 



28 



28 



Oct. 21 



Nov. 20 



Source of conidia 



Triticum vulgare 



(< 

 << 



<< 



<< 



20 

 20 





i( 



« 



c 



0-0 



fan 



4 



4 



5 



4 



4 

 8 



6 



6 



6 



1 Triticum sativum turgid lun HackeL 

 ^Two leaves of each plant inoculated. 



(ft 



3 

 d.S 



Z 



4 



2 

 I 

 2 



3 



22 



3 



3 

 3 



o 



o 



o 



2 



I 



O 



2 



2 

 X 



2 



2 



3 



Date 



1908 



July 21 



a 



Aug. 



<< 



Oct. 

 Nov. 



<( 



21 

 29 



5 



5 



30 

 26 



26 



26 



Results 



Inoc. 



plants 





Controls 



• i> 





-t++ 



four cereals is restricted to the species of each genus. The mil- 

 dew on oats occurs on species of Avena only ; the barley mildew 

 on species of Hordeion only ; the rye mildew on species of Secale 

 only ; and the wheat mildew on species of Triticum only. 



