... but at the same locations. The main alkanes in the two species of Cetraria were C27,C29, and C31. The most abundant alkanes were those inS. ceratites: 18 alkanes. The fractions of alkanes ... 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. ... 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 ether glycerolipids...