Fig. 062. Ulmus - Cross-section of bark.

Gallery: 
Fig. 62. Ulmus - Cross-section of bark.

A. Bast fibers.
B. Parenchymatous tissue.
C. Mucilage ducts.
D. Medullary rays.

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