Fig. 158. Krameria triandra - Cross-section of root.
(18 diam.) A, Cork. B, Thin-walled parenchyma of cortex. C, Xylem. D, Medullary ray. (Photomicrograph.)
This image is from Rhatany in Sayre's Manual of Organic Materia Medica and Pharmacognosy, 1917.
