• Aldrich-Blake, R. N. (1930). The plasticity of the root system of Corsican pine in early life. Oxford Forestry Memoirs 12, 160.
  • Bogar, G. D., & Smith, F. H. (1965). Anatomy of seedling roots of Pseudotsuga menziesii. American Journal of Botany, 52, 720729.
  • Chilvers, G. A., & Pryor, L. D. (1965). The structure of Eucalypt mycorrhizas. Australian Journal of Botany 13, 245259.
  • Clowes, F. A. L. (1951). The structure of mycorrhizal roots of Fagus sylvatica. The New Phytologist, 50, 116.
  • Hacskaylo, E. (1957). Mycorrhiza of trees with special emphasis on physiology of ectotrophic types Ohio. Journal of Science 57, 350357.
  • Harley, J. L., & Lewis, D. H. (1969). The physiology of ectotrophic mycorrhizas. Advances in Microbial Physiology 3, 5378.
  • Harley, J. L., & Smith, S. E. (1983). Mycorrhizal Symbiosis. Academic Press, London .
  • Hatch, A. B. (1937). The physical basis of mycotrophy in the genus Pinus. Black Rock Forest Bulletin No., 6.
  • Hatch, A. B., & Doak, K. D. (1933). Mycorrhizal and other features of the root systems of Pinus. Journal of the Arnold Arboretum, XIV, 8598.
  • Mikola, P. (1965). Studies on the ectendotrophic mycorrhiza of pine. Acta forestalia fennica 79, 556.
  • Piché, Y., Fortin, J. A., & Lafontaine, J. G. (1981). Cytoplasmic phenols and polysaccharides in ectomycorrhizal and non-mycorrhizal short roots of pine. The New Phytologist 88, 695703.
  • Slankis, V. (1973). Hormonal relationships in mycorrhizal development. In: Ectomycorrhizae: Their Ecology and Physiology (Ed. by G. C.Marks and T. T.Kozlowski), pp. 231298. Academic Press, New York .
  • Wilcox, H. E. (1964). Xylem in roots of Pinus resinosa Ait. in relation to heterorhizy and growth activity. In: Formation of Wood in Forest Trees (Ed. by F.Zimmerman), pp. 459478. Academic Press, New York .
  • Wilcox, H. E. (1967). Seasonal patterns of root initiation and mycorrhizal development in Pinus resinosa Ait. Proceedings XIV international Union of Forestry Research Organisations Congress 5, 2939. H. Scheffel, Munchen, Germany.
  • Wilcox, H. E. (1968). Morphological studies of the roots of red pine Pinus resinosa. II. Fungal colonization of roots and the development of mycorrhizae. American Journal of Botany 55, 686700.
  • Wilson, E. R. L., & Field, R. J. (1984). Dichotomous branching in lateral roots of pine: the effect of 2-chloroethylphosphonic acid on seedlings of Pinus radiata D. Don. The New Phytologist 98, 465473.