... calcifuge plants: the importance of membrane systems and their lipid composi-tion. In: Transmembrane Ionic Exchange in Plants (M Thellier, A Monnier, M Demarty, JDainty, eds) ... be an- other important factor. The role of oxalicacid in mineral weathering has been wellrecognized and studied in vitro (Cornell and Schindler, 1987), as well as in vivowith ... in understanding the behaviour of calcifuge and calcicoleplants is the multiplicity of factors affectingtheir response (Kinzel, 1983). It is now ob-vious that all these...