Plant Success - Great White MycorrhizaeMycorrhizae There are two main types of beneficial fungi: endomycorrhizal and ectomycorrhizal. Endomycorrhizae tend to grow alongside vegetables, shrubs, flowers and fruit trees. The 'ecto' variety, however is more adapted to growing on conifers and oak trees. Ecto (outside) varieties tend to grow in the substrate itself, whereas endo (inside) varieties actually penetrate the root cells, facilitating a greater level of nutrient uptake through a close