356 



Reed: The mildews of the cereals 



sativum hexastichon Hackel ; and H. sativum vulgare Hackel, in- 

 cluding H. codeste^ H. intennediian^ H. Katifinanni, and H. 



trifiircatiim. 



TABLE I. — Results with Avena sativa L. 



o 



e 





Id 



38c 



77b 



79c 

 80c 



86c 



13a 



2ib 



23b 

 24b 

 25c 



36b 



44b 



65 c 



66c 



67a 



147a 



147c 



98b 



99b 



1 00b 



loia 



58a 



94c 



1 6c 

 1 8a 



26b 

 27b 



32a 

 42a 

 62a 

 76a 

 90a 



92c 



Date 



1908 



Jan. 2 



Feb. 10 

 " 10 



a 



10 

 22 



1907 



Dec. 24 



<i 

 it 



1908 



Jan. 



3» 



31 

 31 

 31 



2 

 18 

 18 



3 



3 



3 



31 



31 



3 



3 



3 



3 

 t 



22 



3 



3 



1907 



Dec. 25 

 " 25 



Feb. 

 Oct. 



Mar. 



<( 



Feb, 

 Mar. 



it 



31 

 31 



1908 



Jan. 



Feb. 





2 



3 

 10 



22 



22 



f 



Source of conidia 



Hordeum distichon 



ti 

 it 

 it 



a 

 it 

 ti 



Hordeum vuI^are 



it 

 it 



it 



ti 

 it 

 it 

 it 



if 



it 

 it 

 a 

 it 

 (t 

 ft 

 ft 



it 



« 

 it 



(t 



it 



(( 



tt 



Hordeum Zeocriton 

 << tt 



ti 



a 



ft 





Trtticum durum 

 Tj'iticum polonicuju 

 Tr I tic urn Spelt a 



it 



Ti'iticujfi vulgare 



ti tt 



tt 



it 



tt 



tt 



tt 

 tt 



tt 



ti 

 ft 

 ti 



t( 

 i( 

 it 

 tt 



a 

 ti 



at 



V. si 



o ^ 

 < 



8 



9 



9 

 9 

 9 



8 



10 

 10 



10 

 10 



8 



14 

 10 



10 



10 



9 

 9 



7 



7 



7 



7 

 8 



9 

 7 

 7 



9 

 9 





10 



10 



8 



13 

 10 



9 

 9 

 9 



(A 



9 



4J 



as 



iz;- 



3 



3 

 2 



3 



5 



3 



4 

 3 

 3 



3 

 3 

 3 

 3 



3 



2 



3 

 2 



2 



3 

 2 



2 



3 

 5 



3 

 4 



3 



2 



4 

 3 



3 



3 

 3 

 3 

 5 

 4 





O 



o 



o 



3 

 2 



3 



3 



6 



3 



3 

 2 



3 



4 



I 



3 

 2 



2 



3 



3 

 I 



I 



2 



4 

 4 

 4 



3 

 6 



5 



2 



S 



4 





3 

 5 



4 



3 

 2 



6 

 4 



1 



Results 



Date 



1903 



Jan. 11 

 Feb. 



tt 



it 

 tt 



17 

 17 



17 

 29 



1907 



Dec. 30 



1908 



Jan. 



tt 



tt 



tt 



tt 

 it 



it 



Feb. 



tt 



if 



Nov, 



if 



Mar. 



tt 

 tt 



Feb. 

 Mar. 



7 

 7 

 7 

 7 



II 



24 



24 



10 

 10 



10 



7 



7 



10 



10 

 10 

 10 

 10 

 29 

 10 

 10 



1907 



Dec. 30 

 " 30 



1908 



Jan. 7 



" 7 





Feb. 



tt 



II 



10 



17 



29 



29 



Inoc. 

 plants 



Controls 



1 

 1 





_ Discolored areas were visible on the inoculated leaves, indicating the beginning 

 of infectton. No well-developed mycelium producing conidia appeared, however 

 These were the only plants in which any evidence of infection was obtained. 



