Fig. 174a. Cross-section of a portion.

Fig. 174a. Cross-section of a portion

of the trimmed branches of Althaea. a. Bark. b. Medullary ray. c. Parenchyma. d. Wood-bundle. Magnified 18 diam.

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