372 



Reed : The Kiildews of the cereals 



TABLE XXL — Results with Iriticum monococcum L. 



•g'C 



X 4) 



Date 



Il4ci 



I02b2 



I04b2 

 iosc2 

 io6h« 

 io7c^ 

 io8a2 



iiob2 



iiSbi 

 123c* 



129b* 



150a* 

 IS 6b* 

 162b* 

 1250^ 



I28b5 

 1420^ 

 14555 



1570^ 

 i6obs 



! Tgo8 



1 July 



14 



May 



16 



t( 



30 



June 



24 



C( 



24 



a 



24 



J"iy 



7 



ii 



7 



ii 



7 



i4 



22 



< ( 



22 



i( 



28 



Oct. 



19 



<i 



31 



Nov. 



2 



(< 



10 



f £ 



12 



July 



28 



Oct. 



19 



<( 



31 



ii 



31 



Nov. 



10 



" 



12 



Source of conidia 



7 nttcum compactum 

 Tn tic urn vulgar e 



4 ( 



<; 



CI 



u 

 (( 



<( 

 c< 



a 



f 



4 

 10 



24 



4 

 4 

 4 

 7 

 7 

 7 

 5 

 5 



4 

 6 



7 

 9 



7 



9 



4 

 6 



7 

 7 

 7 



9 



o o 



2 

 I 



I 

 2 

 I 

 I 



2 

 2 



3 



3 



2 



4 



5 



2 



3 

 3 

 3 

 3 

 3 

 3 

 3 

 4 



S 



o 



o 



2; 



I 



O 

 O 

 O 

 I 



o 



I 

 I 

 I 



2 

 I 

 I 

 I 



4 

 I 



4 

 2 



3 



4 



2 



3 

 I 



I 



Kesults 



Pate 



1908 



July 

 May 



June 



Inoc. 



plants 



£( 



ii 



ii 



July 



Ci 



cc 



Aug. 



Oct. 



Nov. 



it 

 a 



Aug. 



Oct. 



Nov. 



« 



22 



24 

 10 



30 



30 

 30 

 14 

 14 



14 

 29 



29 



5 



26 



7 



7 



19 

 21 



5 

 26 



7 

 7 



iq 



20 



++ 



+ 



+++ 



+++ 



+^ 



6 





^ Seed obtained from Vilmorin-Andrieux Co., of Paris. 

 ^ Seed obtained from Dr. Wm. Trelease. 

 * Two leaves inoculated. 



* Variety Hornemanni, 



^Variety vufgare. Varieties Iforneyjtanni and 

 Botanical Garden at Tabor, Bohemia, 

 ** A very good infection of one leaf. 



Controls 



# * 



« ■ « 



t A 



vulgare were obtained from the 



became infected. There is, therefore, a marked difference in sus- 

 ceptibih'ty of these five varieties. It is to be noted here, that 



Mar 



negative results when he sowed conidia from 



wheat on Triticwn dicoccum. His results may be due to the fact 

 that he was working with an immune variety. It is apparent from 

 my results that some varieties are quite susceptible, while others 

 are almost or entirely immune. 



My res 

 Marchal 



> show two other interesting differences from those 

 In my work, six different varieties of Triticwn durum 



were tested. In every case full infection followed. Marchal, on 

 the other hand, states that this species is immune to the wheat 



