Fig. 203. Cross-section of root.

of spigelia (X64). A, Epidermis. B, Parenchyma of primary cortex. C, Endodermis. D, Pericycle. E. Phloem. F, Xylem.

This image is from Spigelia in Sayre's Manual of Organic Materia Medica and Pharmacognosy, 1917.

Fig. 203. Cross-section of root.