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Electron micrograph of an endosperm cell adjacent to the crushed walls of nucellar cells. B, cell wall portions with plasmodesmata. C, cell wall portions with wall ingrowths. N, nucleus; nu, nuclealus; m, mitochondria; p, plastid; v, vacuole; L, lipid body, cw, cell wall; *, cell wall ingrowth. Enlargements of the regions B and C are depicted in Fig. 9.
