Stout & Boas: STATISTICAL STUDIES ІМ CICHORIUM 407 
quite adequate data by making collections from the plant as a 
whole, especially when the data are well distributed over the 
season and form a rather large total. 
C. The phenomenon of intermittent annual growth. 
Opportunity for further study of the influence of position and 
time of development on the number of flowers per head was given 
by a very marked variation of vegetative habit, giving discon- 
tinuous development or two periods of growth in a single year. 
TEXT-FIGURE I. Two plants of the race (race 3) exhibiting intermittent growth- 
Photo taken late in autumn. - 
To left a plant with first growth cut away, leaving only second growth. 
To right a plant showing both first and second growth. The first growth was 
about twice as tall as the second and when photographed was dead and dry while the 
second growth was green and flowering profusely. 
As a rule the seasonal development of the various branches is so 
continuous and overlapping that there is a sequence of bloom and 
no interruption in the blooming of a plant as a whole. The last 
to develop of the main laterals are the most basal of the laterals 
and are from the uppermost of the rosette leaves. 
