PEAS AND BEANS.
251
Fig. 73.—Bean.
On right side of illustration: 1, The testa, showing epidermal cells, Ep; H, hypoderm with calcium oxalate crystals; P, parenchyma; 2, epidermis cells on surface; 3, 5, isolated palisade cells; 4, hypoderm cells in profile; 6, on surface; 7, tissue of cotyledon. On left side; 1-4, Portions of cotyleon structure; 5, tissue of the shell; 6, starch grains (Vogl).
