... Characterization of surfacen-alkanes and fatty acids of the epiphytic lichenXanthoria parietina, its photobiont a green algaTrebouxiasp., and its mycobiont, from the Jerusalem hills A. Torres1,I.Dor2, ... micro-organism: a fungus(termed the mycobiont) and a green alga or a cyanobacte-rium (termed the photobiont). These organisms have bothalgal and fungal properties [1,2] and produce n-alkane,unusual betaine ... doi:10.1046/j.1432-1033.2003.03556.xTable 1. Comparative n-alkane and fatty acid compositions of X. parietina, the photobiont Treb ouxia sp., and the mycobiont (% of total n-alkanes) collected in the places indicated. Values...