THE JECIDIAL STAGE OF EUSTS. 



41 



Table III. — Summary of experiments to determine the vitality of successive uredo genera- 

 tions of various grain rusts — Continued. 



PUCCINIA CORONATA ON OATS— Continued. 



PUCCINIA RUBIGO-VERA SECALIS ON RYE. 



1907. 

 Feb. 6 

 Feb. 19 

 Mar. 5 

 Mar. 27 

 Apr. 17 



1907. 

 10 Feb. 19 

 10 Mar. 5 

 Mar. 27 

 Apr. 8 



39 



9 

 3 

 1 



s 10 



0) 



6 



9 



10 



10 

 10 

 10 

 10 

 10 

 10 

 10 

 10 

 10 

 9 

 5 



a... 



b.. 



c. 



d = . 



e.. 



f.., 



t\ 



i. . 



j.. 



k.., 



1.. 



m. 



n.. 



o9. 



p.. 



q.. 



r.. 



y--- 



z. .. 

 aa. . 

 bb. 

 cc. . 

 dd. 



1907. 

 Feb. 6 

 Feb. 19 

 Mar. 5 

 Mar. 27 

 Apr. 17 

 May 8 

 May 27 

 June 11 

 June 26 

 July 10 

 July 24 

 Aug. 9 

 Aug. 24 

 Sept. 11 

 Sept. 28 

 Oct. 16 

 Oct. 31 

 Nov. 20 



Dec. 12 

 1908. 



t Jan. 7 



u ! Jan. 25 



V i Feb. 15 



w^ Mar. 3 



Mar. 30 



Apr. 13 



Apr. 28 



May 13 



Mav 26 



June 12 



June 25 



10 

 10 

 10 

 3 

 7 2 

 10 

 10 

 10 

 10 

 10 

 10 

 10 

 10 

 10 

 10 

 5 

 9 

 10 



10 



9 



10 

 10 

 10 

 10 

 10 

 10 

 10 

 10 

 10 

 10 



1 Not recorded. 



2 Experiments discontinued. 



3 Pustules vigorous. 

 * Several. 



s Series sent from Washington, D. C, to Minneapolis, Minn. 



« Lost in transit. 



' Inoculations made from material from dried leaves. 



^ Inoculations made from m. 



' Series sent from Miimeapolis, Minn., to Washington, D. C. 



1907. 

 Feb. 19 

 Mar. 5 

 Mar. 25 

 Apr. 8 

 May 7 

 May 26 

 June 10 

 June 25 

 July 8 

 July 23 

 .lug. 8 

 Aug. 23 

 Sept. 10 

 Sept. 27 

 Oct. 8 

 Oct. 31 

 Nov. 18 

 Dec. 10 



1908. 

 Jan. 7 



Jan. 25 

 Feb. 15 

 Mar. 3 

 Mar. 19 

 Apr. 13 

 Apr. 28 

 Mav 13 

 May 2G 

 June 12 

 June 25 

 July 10 



0) 



(<) 

 0) 



(^) 



3 10 



8 



il6 



