Analyzing and Mapping Natural Landscape Factors—Ozark Province 61 
ity above the average for the Ozarks, and the presence of abun- 
dant pines reflects the influence of the low water table in the 
Pervious chert residuum. 
On the Jefferson City-Cotter dolomite of the lower hills the 
vegetation is characteristic of poor shallow soil derived from 
non-cherty dolomite and of abundant moisture which seeps out 
between the strata of the bed rock. Post, red, and black oaks 
are the dominant species and southern red cedar is the indicator. 
The timber is smaller than that on the Burlington-Boone, prin- 
Cipally because the shallow soil does not afford adequate root 
anchorage for large trees. Many small patches have soil so thin 
that only grass, herbaceous plants, and small cedars thrive. These 
barrens are called glades or, if on hilltops, bald knobs. 
A comparison of two adjacent woods four miles north of 
Forsyth, Missouri, Figure 11, emphasizes the essential differ- 
ences between the forest on the Burlington-Boone and that on 
the Jefferson City-Cotter?®, In each case the percentage of the 
indicator (pine or cedar) is abnormally high. The line between 
the two vegetational assemblages is extremely sharp. Neither 
Pines nor cedars transgress the boundary more than a few feet, 
26. In calculating the percentage composition of the forests on 
it to estimate the percentage of the 
su 
e roc necessary 
total stand in each situation, as summits, west-facing slopes, east- 
acing slopes, and so on, an ify the count obtained for 
each situation in the light of this estimate. e tree counts on 
north-, 5 t-, and west-fa slopes were given equal values 
in both calculations, but the numerical relation between forests on 
slopes hos. su ifferent for the two rc ypes 
or the Burlington-Boone forests, the number of trees on slo 
Was estimated to times as great as number on level 
s its or Jefferson City-Cotter forests, h i ios ye 
es ither ca 
caeags - : pop be influenced 
variations and to position with relation : Fi rf 
elements migrating into thé region. The figures given in ogee 
represent actual tree counts; the percentages are based on 
culated values. 
