Root Directory
Lateral Roots originate in the Stele or the Endodermis. They grow through the Cortex and Epidermis.
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| Early Stages in Lateral Root Initiation | Later Stage in Lateral Root Production - only the Epidermis remains between it and the Rhizosphere. |
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| Lateral Root showing the Vascular Connection between it and the parent Stele. | |
 Tap root system of Zamia |
Lateral roots are produced in a definite pattern. The youngest roots are close (proximal) to the apex. The pattern of lateral root production is readily observed with tap root systems. The tap root can also be called the primary root while its branches are called secondary or lateral roots. |
 Plant with a Fibrous Root System. |
The origin of lateral roots can be unraveled for species that have fibrous root systems. A clear pattern emerges with careful study. |
