The association of a fungal mycelium with the roots of a vascular plant, such as an orchid or a tree.
mycorrhiza in the roots of a Thrixspermum species (Thr.), the fungal mycelium penetrating the bark of the host tree Barringtonia racemosa Roxb. (B.); after Ruinen
mycorrhiza in the roots of Thrixspermum sp. (Thr.), the fungal mycelium forming moniliform chains in the epidermis of the host tree Crescentia cujete L. (Cr.); after Ruinen