How do ectomycorrhizae differ from endomycorrhizae?

1. Mycorrhizae come in two types, ectomycorrhizae and endomycorrhizae. 2. Ectomycorrhizae form an extensive dense sheath around the roots, called a mantle. 3. Hyphae extend from that mantle into the soil, increasing the surface area for water and mineral absorption. 4. This type is found in forest trees, especially conifers, birches and oaks. 5. Endomycorrhizae, also called arbuscular mycorrhizae, form no dense sheath and instead have the fungal mycelium embedded within the root tissue. 6. So the option describing embedding inside the root reverses the two types, which is the standard confusion between the prefixes. _Source: OpenStax Biology (1st ed., CC BY 4.0), Ch 31 "Soil and Plant Nutrition", section 31.3 Nutritional Adaptations of Plants_