Plant epidermis

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Different leaf surfaces

The surfaces of leaves vary under the microscope as much as the whole plants themselves do. The left is the silvery underside surface of the oak leaf with three large stomata - the pores through which the plant breathes and evaporates water. The right surface is that of eucalyptus. The leaf looks smooth but up close the cells form a pebble pattern with six stomata embedded. The top image is that of pine, where the stomata are in sunken pits to prevent water loss. The lower image is that of maize in which the cells are arranged in regular rows (some smooth, some ridged) with rows of stomata between them. Balsam Post cover, issue No. 49, October 2000. Printed on grey paper.

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1992-2002 Contents

Balsam post 1992-2002 home

1992-2002 Cover index