Glossary of "Molecular Systematics (2nd ed.)" by Hillis et al. (1996)
- additive tree: A phylogenetic tree in which the distance between any two points is the sum of the lengths of the branches along the path connecting two points.
- Hillis, D. M., Moritz, C. & Mable, B. K. 1996. Molecular Systematics, 2nd ed. -xvi + 655 pp. Sinauer Associates, Inc., Sunderland.