428 



Bulletin 279. 



Fig. 120. Types of head occasionally 

 founds From left to right: (i) 

 nodding, (2) interrupted, (3) pan- 

 icled, (4) rugose, (5) slender 

 cylindrical. 



tracted panicle, the rachillae being 

 very much reduced, giving the inflor- 

 escence a spike-Hke appearance. 

 Occasionally plants are found in 

 which the rachillae are abnormally 

 elongated, thus giving rise to a 

 somewhat panicled form. 



The color of head most commonly 

 occurring is dark green. Reddish or 

 dark bluish purple colors have also 

 been observed. These colors become 

 more pronouijced as the plants ap- 

 proach maturity. 



Variation in earliness. — The earli- 

 ness of timothy, as indicated by 

 the beginning of bloom, is subject 

 to much variation. The greatest 

 range observed was in 1907, when 

 there was a difference of 18 days 

 between the earliest and the latest 

 blooming plants. 



TABLE II — Frequency Distributions for Earliness 



Day of month 



June 21 

 22 



23 

 24 

 25 

 26 

 27 

 28 

 29 



30 



July I 



2 



3 

 4 



5 

 6 



7 

 8 



9 



102 



5 



39 



305 



59 

 1,496 



786 



383 



19 



8 

 260 



Number of Plants 



I 

 6 



I 



360 

 361 



354 

 803 



1,046 



475 

 15 



■78 



4 



z 



1907 



I 

 32 

 57 



562 

 446 



