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INFLORESCENCE AND FLOWERS—FRUIT AND SEED.
Fig. 37.—Transverse sections of the pericarp (III) and seed (VI) of the oak. E, epidermis; i, thick layer of sclerenchyma; under this come the parenchyma cells, with a few sclerenchyma cells here and there. T, testa of seed; G, vascular bundles; e, the outer layer or epidermis of the cotyledon; Co, thin- walled cells of cotyledons (cf. Figs. 35 and 36) filled with starch, etc. (Harz.)