part_of part of part of adjacent to adjacent to adjacent_to anther wall anther wall endothecium An microsporangium endothecium (PO:0025309) that part of an anther wall (PO:0000002). May have secondary thickening of walls of cells that are involved in anther dehiscence. There can be more than one layer in an anther endothecium. If you are annotating to this structure for Zea mays or other grasses, please also add an annotation to the corresponding floret type. Choose the most specific term possible from: spikelet floret (PO:0009082), tassel floret (PO:0006310), lower floret of pedicellate spikelet of tassel (PO:0006313), lower floret of sessile spikelet of tassel (PO:0006315), upper floret of pedicellate spikelet of tassel (PO:0006314), upper floret of sessile spikelet of tassel (PO:0006316). PO:0006446 PO:0006481 PO:0020002 PO_GIT:149 PO_GIT:357 Poaceae endothecium (narrow) Zea endothecium (narrow) anther sac hypodermis (related) endotecio de la pared the la antera (Spanish, exact) plant_anatomy pollen sac endothecium (exact) 葯壁内皮 (Japanese, exact) anther wall exothecium microsporangium endothecium