| ||||||||||||||||||||

Leaf trichomes and taxonomy
Comparative analysis of leaf trichome structure and composition of surface exudates is often used to distinguish between closely related species or hybrids. Valkama et al. (pp. 643-655) show that structure, density and distribution of leaf glandular and non-glandular trichomes and the profiles of epicuticular flavonoids differ among Finnish birch species and thus provide a useful taxonomic tool.
| ||||||||||||||||||||