Abstract

Ectomycorrhizal roots sampled from the mycorhizosphere of Populus ciliata from Himalayan moist temperate forests of Pakistan were characterized based on standard methodology for morphological and anatomical characters which include: morphology of ectomycorrhizal system, structure of mantle layers in plain view, structure of rhizomorphs, shape of cystidia and features of emanating elements. Two distinct types of ectomycorrhize were found and briefly described. Characteristic features of these ectomycorrhizae were dichotomously branching pattern, pseudoparenchymatous mantle and branched emanating hyphae with septations. The two new types of ectomycorrhizal morphotypes are found undescribed previously and are given tentative names until their mycobiont is identified.

Key words: Decidous, ectomycorrhiza, Himalayas, morphologycal, anatomical description