Fig. 095. Cassia cinnamon.
- Cross-section of bark. A. Cork cells. B. Parenchyma cells. C. Stone cells. D. Bast fibers in parenchyma. E. Oil-resin cells (black line from E should have been directed to the large cell below and to the left of that letter). F. Medullary ray.
This image is from Cassia bark in Sayre's Manual of Organic Materia Medica and Pharmacognosy, 1917.