COMPARATIVE ANATOMY OF ROOTS AND MYCORRHIZAE OF COMMON ONTARIO TREES

The ultimate lateral roots of most of the 20 species examined were consistently mycorrhizal, and many species had heterorhizic root systems with separate long and short lateral roots. Tree roots displayed enough structural diversity in features such as thickened, lignified, or suberized walls, and secondary metabolite-containing cells to allow identification of genera. -from Authors