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Mitotic figures in pericycle cells on root sections. A, Metaphase 2 to 3 mm from the tip. B, Anaphase 4 to 6 mm from the root tip. C, Telophase 2 to 4 mm from the tip. D, A cell packet 221 μm long with young cell wall (arrowhead) 2 to 4 mm from the root tip. Arrowheads on A and C indicate convex end cell walls. Bar on A, C, and D = 20 μm; bar on B = 10 μm.
