Onion Epidermis

Onion cells stained with iodine.
At 40X, micrograph width = 2 mm; at 100X, micrograph width = 0.8 mm; at 400X, micrograph width = 0.2 mm; at 1000X, micrograph width = 0.08 mm.

Onion epidermis at 40X, iodine stain.

Onion epidermis, at 100X, iodine stain.

Onion epidermal cells, iodine stain, 400X.

The nucleus of an onion epidermal cell, 1000X magnification.