Fig. 160. Senega - Cross-section of root.

(21 diam.) A, Xylem. B, Parenchyma of cortex. C, Cork. (Photomicrograph.)

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

Fig. 160. Senega - Cross-section of root.