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Fig. 240. Valerian - Cross-section of rootlet.

(17 diam.) A, Epidermis. B, Parenchyma of cortex. C, Phloem. D, Xylem. (Photomicrograph.)

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

Fig. 240. Valerian - Cross-section of rootlet.


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