LITERATURE CITED
- Brattbakk, I. 1986. Vegetasjonsregioner-Svalbard og Jan Mayen. Nasjonalatlas for Norge, Kartblad 4.1.3.
- Elkington, T. T. 1971. Biological flora of the British Isles: Dryas octopetala. J. Ecol. 59: 887–905.
- Hegi, G. 1981. Illustrierte Flora von Mitteleuropa. Parey Verlag, Berlin, Hamburg, Germany.
- Holm, K., and L. Holm. 1985(1986). Kleinpilze zuf Dryas-Stämmchen. Sydowia 38: 136–145.
- Hultén, E. 1959. Studies on the genus Dryas. Svensk Bot. Tidskr. 53: 507–547.
- Krebs, C. J. 1989. Ecological methodology. Harper Collins Publishers, New York.
- Lloyd, M., and R.J. Ghelardi. 1964. A table for calculating the “equitability” component of species diversity. J. Animal Ecol. 36: 1–30.
- Petrini, O. 1991. Fungal endophytes of tree leaves. Pp. 179–197. In: Microbial ecology of leaves. Eds., J. H. Andrews, and S. S. Hirano. Springer Verlag, New York, Berlin, Heidelberg.
- Petrini, O., T. N. Sieber, L. Toti, and O. Viret. 1992. Ecology, metabolite production, and substrate utilization in endophytic fungi. Nat. Toxins 1: 185–196.
- Sieber-Canavesi, F., and T. N. Sieber. 1988. Endophytische Pilze in Tanne (Abies alba Mill.)---Vergleich zweier Standorte im Schweizer Mittelland (Naturwald-Aufforstung). Sydowia 40: 250–273.
- Wookey, P. A., A. N. Parsons, J. M. Welker, J. A. Potter, T. V. Callaghan, J. A. Lee, and M. C. Press. 1993. Comparative responses of phenology and reproductive development to simulated environmental change in subarctic and high arctic plants. Oikos 67: 490–502.
- Wookey, P. A., A. N. Parsons, J. M. Welker, J. A. Potter, T. V. Callaghan, J. A. Lee, and M. C. Press, J. M. Welker, A. N. Parsons, M. C. Press, T. V. Callaghan, and J. A. Lee. 1994. Differential growth, allocation and photosynthetic responses of Polygonum viviparum to simulated environmental change at a high arctic polar semi-desert. Oikos 70: 131–139.