Endomycorrhizae are found in the roots of what proportion of terrestrial plants?

1. Endomycorrhizae, also called arbuscular mycorrhizae, sit embedded within root tissue rather than sheathing it. 2. They are found in the roots of more than 80 percent of terrestrial plants. 3. That makes them the common type, while ectomycorrhizae are concentrated in forest trees such as conifers, birches and oaks. 4. Such a high figure fits the statement that most plants rely on fungi to help take minerals from the soil. _Source: OpenStax Biology (1st ed., CC BY 4.0), Ch 31 "Soil and Plant Nutrition", section 31.3 Nutritional Adaptations of Plants_