Stout—Vegetation of a Typical Wild Hay Meadow . 449 
Cylinder IV. Roots 30 indies. Stems 24 inches, fruiting. 
Cylinder V. Roots 25% inches. Stems 20 inches, fruiting. 
Cylinder VI. Roots 25 inches. Stems 20 inches. 
These blue joint plants were grown from rhizomes trans¬ 
planted from the field and not from seed. This may account in 
part for the rather uniform results (See Plate XXIII). This 
species made a good growth in cylinders I and II but the foliage 
was yellowish. It fruited in all of the first five cylinders and 
showed little differences in the root development in all but the 
1st cylinder. 
Alsike clover. 
Cylinder I. Roots 6 inches. Stems and leaves 8 inches. 
Cylinder II. Roots 24% inches. Stems and leaves 9 inches. 
Cylinder III. Roots 25% inches. Stems and leaves 11 
inches. 
Cylinder IV. Roots 25 inches. Stems and leaves 9 inches. 
Cylinder V. Roots 21 inches. Stems and leaves 15 inches, 
in blossom. ! 
Cylinder VI. Roots 21 inches. Stems and leaves 9 inches. 
This plant did poorly in cylinder I. The main roots were 
short and thickened and bore many branches close to the sur¬ 
face. The aerial development was mostly leaves of good color 
but noticeably small. The different water levels in the other 
cylinders did not cause any marked differences except that 
plants in cylinder V were the only ones to produce blossoms. 
Discussion of the Experiments 
The final results for all the species are shown geographically 
in Plate XXIII with the depth of root growth and the height of 
the shoot development drawn to a scale in reference to the sur¬ 
face of the soil and the water level. This shows that under the 
conditions given the roots of all the species tested can extend be¬ 
low the water level and make a vigorous growth in the water 
saturated soil. The best general plant development was in cylin¬ 
ders III and IV where the roots had a zone of soil 8 and 12 
inches thick above the water table. In these the root develop- 
