Fig. 092. Berberis. Cross-section of rhizome.
(22 diam.) A. Cork. B. Group of bast fibers. C. Medullary ray. D. Xylem. (Photomicrograph.)
This image is from Berberis in Sayre's Manual of Organic Materia Medica and Pharmacognosy, 1917.
Practical Herb Cards 2
Distance course
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