Abstract
A successional vegetation mosaic occurring on a prehistoric lava field of the Hekla volcano is described. The unique lava formation is associated with two vegetation types, distinct floristically as well as phytosociologically. In one vegetation type crytogams dominate; the other is dominated by small leaved graminoids and chamaephytic plants.
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The author thanksH. Voigt for support during the field work in Iceland,L. Wagner, Berkley, for correction of the english text andH. Hurka, Osnabrück, for helpful comments.
Nomenclature of species followsTutin et al. (1964–1980) for higher plants andGams (1973),Nyholm (1956–1969) andPoelt (1969) for cryptogams.
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Bernhardt, KG. Mosaic vegetation characteristic of the prehistoric lava fields of the «Hekla» area near Galtaleakur, Iceland. Folia geobot. phytotax. 21, 243–248 (1986). https://doi.org/10.1007/BF02853256
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DOI: https://doi.org/10.1007/BF02853256