Abstract
The geographic distributions of two common species of epiphytic lichens,Phaeophyscia limbata (Poelt) Kashiw. andLecanora pulverulenta Müll. Arg., on city park trees in the Osaka Plain and their relation to the distribution of SO2 and NO2 was examined. The concentrations of SO2 and NO2 are greater in the central area of this plain, and decrease with distance from the center. The frequency ofL. pulverulenta is lowest in the central area, and increases gradually toward the periphery. In contrast, the frequency ofP. limbata is highest in the intermediate area, and lower in the central and peripheral areas, i.e. at intermediate SO2 and NO2 concentrations.
We conclude thatL. pulverulenta is more useful thanP. limbata as a bioindicator of air pollutants such as SO2 and NO2.
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Hamada, N., Miyawaki, H. & Yamada, A. Distribution pattern of air pollution and epiphytic lichens in the Osaka Plain (Japan). J. Plant Res. 108, 483–491 (1995). https://doi.org/10.1007/BF02344238
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DOI: https://doi.org/10.1007/BF02344238