“Quercirhiza tomentellostellata” + Quercus suber L.

Abstract

Mycorrbizal systems of "Quercirhiza tomentellostellata" are monopodial-pinnate to-pyramidal in shape and dark brown to black in colour. They form outer mantle layers with roundish to angular cells which bear groups of globose cells with conical wall outgrowths, and become elongated and star-like arranged in middle mantle layers. Inner layers are plectenchymatous with cells varying in shape but mostly elongated, distributed with no discernible pattern altrenating with portions of ring-like arrangement. Rhizomorphs are slightly differentiated and produce thin and densely twisted peripheral byphae. The mycosymbiont of this ectomycorrhiza was identified as a member of the genus Tomentella by nrDNA its sequence analysis.