Citations:crosssectionally


 * 2002, William Carey Grimm, Illustrated Book of Trees [...] of Eastern North America (Stackpole Books, ISBN 9780811741644):
 * The very rough leaves, uniformly chocolate-colored bark (when
 * viewed crosssectionally), very mucilaginous, gluelike, and aromatic
 * inner bark, wingless twigs, and eciliate fruits are distinctive.