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Fig. 208. Apocynum cannabinum.

—Cross-section. (28 diam.) A, Cork. B, Parenchyma of cortex. C, Medullary ray. D, Water tube. (Photomicrograph.)

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

Fig. 208. Apocynum cannabinum.


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