n8 



Tall Bearded Iris 



more favorable buds sometimes then appear on various 

 portions of the rhizome, even on the growths of the 

 several previous years. Fig. XIII shows such a 

 rhizome. Its annual growth is indicated by rings 

 where the leaves withered away. Notice that for 

 seven years it grew in length without developing a 

 side-bud, and then, conditions having been changed, 

 it produced buds on its growth of each previous year 

 and was preparing to and did flower the following 

 year. 



FIG. XIII. RHIZOME, STARVED FOR YEARS, UNDER IMPROVED CONDITIONS 



Each growing point is called a "toe". As the 

 joint increases in length the apex turns upwards to 

 produce leaves and flower-stem, and in time this 

 sometimes results in the upper part of the newer 

 rhizomes being brought to the surface of the ground; 

 and after a time, mainly by the action of the rain 

 and wind on the soil, the older rhizomes also some- 

 times become exposed. When this occurs it is not 

 necessary to re-cover the protruding rhizomes, for by 



