Fig. 266-267. Magnified Sections of Sarsaparilla.

Fig. 266. Transverse section of the cortex and half of the diameter of the meditullium.
Fig. 267. Longitudinal section of the cortex.
a. Cuticle or epidermis,
b. Outer cortical layers (subcuticular tissue).
c. Inner cortical layers. Most of the cells abound in starch; some few contain raphides (see Fig. 267).
d. Cellular layer or nucleus sheath.
e. Woody zone (vascular-bundle-circlc).
f. Medulla or pith.

This image is from Sarsaparilla in Pereira's Elements of Materia Medica and Therapeutics, 1854.