Mycorrhizae

 Hogberg, P., 1982. Mycorrhizal associations in some woodland and forest trees and shrubs in Tanzania. New Phytologist 92, 407-415

 Hogberg, P., 1986. Nitrogen-fixation and nutrient relations in savanna woodland trees (Tanzania). Journal of Applied Ecology 23 675-688

 Hogberg, P., 1990. ¹⁵N natural abundance as a possible marker of the ectomycorrhizal habit of trees in mixed African woodlands. New Phytologist 115, 483-486.

 Hogberg, P., 1992. Root symbiosis of trees in African dry tropical forests. Journal of Vegetation Science 3, 393-400

 Hogberg, P. and I. J. Alexander, 1995. Roles of root symbioses in African woodland and forest: evidence from ¹⁵N abundance and foliar analysis. Journal of Ecology 83, 217-224.

 Hogberg, P., and J. E. Nylund, 1981. Ectomycorrhizae in coastal miombo woodland Plant and Soil 63, 183-189.

 Hogberg, P. and G. D. Pierce, 1986. Mycorrizas in Zambian trees in relation to host taxonomy, vegetation type and successional pattern. Journal of Ecology 74, 775-785.

Hogberg, P., L. Hogbom, H. Schinkel, M. Hogberg, C. Johannisson and H. Wallmark, 1996. ¹⁵Nabundance of surface soils, roots and mycorrhizas in profiles of European forest soils. Oecologia 108: 207-214.

Michelsen, A., I. K. Schmidt, S. Jonasson, C. Quarmbly, and D. Sleep, 1996. Leaf 15N abundance of subartic plants provides evidence that ericoid, ectomycorrhizal and non- and arbuscular mycorrhizal species access different sources of soil nitrogen. Oecologia 105, 53-63.

Michelsen, A., C. Quarmbly, and D. Sleep, and S. Jonasson, 1998. Vascular plant 15N natural abundance in heath and forest tundra ecosystems is closely correlated with presence and type of mycorrhizal fungi in roots. Oecologia 115, 406-418.

Munyanziza, E. and Oldeman, R. A. A, 1996. Miombo trees: Ecological strategies, silviculture and management. Ambio 25 (7), 454-458.

Sloff, D., 1982. A study of the effects of vesicular-arbuscular mycorrhizal infection on two grass species, P maximum and E. curvula, grown on two soils types from the Nylsvley Nature Reserve. BSc Honours Thesis, University of Witwatersrand, Johanesburg.

 Tinker, P. B., 1975. Soil chemistry of phosphate and mycorrhizal effects on plant growth. In: Endomycorrhizas, F. E. Sanders, E. Moose and P. B. Tinker (eds). London: Academic Press.

Watling, R., 1994. Ectomycorrhizal fungi in the Palaeotropics. Mycologia Helvetica 2: 129-138.

Zaady, E., P. Groffman, and M. Shachak, 1998. Nitrogen fixation in macro- and microphytic patches in the Negev Desert. Soil Biol, Biochem. 30: 449-454.