1846 H. Mohl in 4 91 The chlorophylle granules..were united, in the middle of the cell, into a globular mass which suddenly expanded..and..filled the whole space of the leaf-cell.
1974 A. J. Huxley vii. 57 In which vein the xylem and phloem fit together, so that the sugars from the leaf cells can be passed into the remainder of the plant.
2003 Sept. 41/2 (advt.) Flame weeders work by disrupting leaf cell structure.