The Classification and Distribution of the Mycorrhizas of Pinus Radiata

SUMMARY Seven different types of mycorrhiza were collected from a stand of Pinus radiata D. Don growing at Mt. Macedon. Victoria. These were classified according to Dominik's colour key. One of the forms has not been described before. The distribution of these types along a random traverse was studied over a period of 14 months. Four types were strictly localised in their distribution while the other three were evenly and abundantly distributed. These mycorrhizas were collected consistently from the same locations during the observation period and no variations were detected in their gross anatomy.