libriform fiber cell septate fiber cell septate libriform fiber cell 2012-02-02T04:43:44Z A libriform fiber cell (PO:0004520) that has as parts one or more thin internal partitions or septa. A septate libriform fiber cell septum is composed of the adjacent primary cell walls of two internal cells that arise from mitosis within the septate libriform fiber cell after it has formed a secondary cell wall (GO:0009531). PO:0025420 PO_GIT:443 fibra libriforme septada (Spanish, exact) plant_anatomy rwalls 隔壁靭皮繊維細胞 (Japanese, exact)