A native plant cell (PO:0025606) at the base of a gemma (PO:0025614) or adjacent to a brachycyte (PO:0030058) that breaks down to allow abscission of the gemma or brachycyte. [source: ISBN:0962073342, POC:Laurel_Cooper]
Comment
May be a single cell adjacent to a brachycyte (PO:0030058) or part of a portion of tmema tissue.