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Longitudinal section of a root of maize
Legend:
1 cortex
3 xylem
4 parenchyma
2 phloem
English name: Corn / Maize
Scientific name: Zea mays
Familia: Gramineae
Classis: Monocotyledonas
Phylum: Angiospermae
Regnum: Plantae
This root contains metaxylem. The primary elements that have differentiated from the procambium are located at some distance from the apical meristem. The cell wall can not stretch anymore.