"Flechten." . . "Porosty." . . "Lichens. Biologie." . . . "The Biology of lichens"@en . "The Biology of lichens" . . . "The biology of lichens : Mason E. Hale,Jr" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . "The biology of lichens"@en . "The biology of lichens" . . . . . . "Morphology of the thallus; Morphology of reproductive structures; Reproduction and dispersal; Physiology and nutrition; Symbiosis and synthesis; Growth and longevity; Ecology and succession; Lichens and air pollution; Chemistry of lichens; Economic uses and applications; Taxonomy and identification; Classification." . . . . . . . . . "The Biology of lichens. [With illustrations.]"@en . . "Biology of lichens" . . . . . . . . . . . . . . . . "Lichens." . . "Líquens." . . "Líquens" . . . "Lichenes." . . "Lichenes" . "Líquenes." . . "Líquenes Fisiología." . . "lichen." . . "Algae." . . "Biologie." . .