obsolete_apical meristem true GRO:0000231 A group of cells at the tip of the stem and root that give rise by cell division to the primary tissues and are ultimately responsible for the structural organization of the entire primary plant body. James Malone replaced with PO_0020144 http://purl.obolibrary.org/obo/PO_0020144 2.73 true BTO:0000034