Glossary of "Cladistics (2nd ed.)" by Kitching et al. (1998)
- A line on a cladogram connecting two nodes (internal branch), a node and the root (basal branch) or a node and a terminal taxon (terminal branch). Also known as an internode.
Glossary of "A Botanist's Vocabulary" by Pell & Angell (2016)
- 1. stem arising from another stem; 2. the divarication of one structure into smaller versions or segments of that structure; 3. the action of producing a divarication, as in branches of trees or veins in leaves.
- Kitching, I. J., Forey, P. L. Humphries, C. J. & Williams, D. M. 1998. Cladistics, 2nd ed.: the Theory and Practice of Parsimony Analysis. -xii + 228 pp. Oxford University Press, New York.
- Pell, S. K. & Angell, B. 2016. A Botanist's Vocabulary: 1300 Terms Explained and Illustrated. 226 pp. Timber Press, Portland.