"Cross section of a portion of a leaf of Indian corn. a, upper and b, lower epidermis; c, c, palisade…
"Diagram showing how the position of the chlorplasts against the vertical walls of the palisade cells…
"Diagram to show the activities going on in a palisade cell. The arrows from the chloroplasts into the…
"Cross section through the thallus of Marchantia. j, stoma leading into a relatively large air-chamber…