INFLORESCENCE AND FLOWERS FRUIT AND SEED. 133 



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FIG. 37. Transverse sections of the pericarp (III) and seed (VI) of the 

 oak ; E, epidermis ; , 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 (of. Figs. 35 and 

 36) filled with starch, etc. (Harz.) 

 10 



