Fig. 203. Cross-section of root.

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.