A survey was conducted to investigate into mycorrhizae in eucalypts introduced in different environments in Pakistan. All the 57 species examined were found capable of farming ectorophic mycorrhizae. General structure of mycorrhizae encountered is the same as described for euclypts growing in Australia. Based on their characteristics, three types of mycorrhizae were identified, viz., white nodular, white pyramidal and brown pyramidal. Of these, the last named was the most prevalent and was described.