Kauppi, M/ Mikkonen, A 1980: Floristic versus single species analysis in the use of epiphytic lichens as indicators of air pollution in a boreal forest region, northern Finland. - Flora169: 255-281. [RLL List # 109-60 / Rec.# 9947] Keywords: FINLAND/ AIR POLLUTION/ HYPOGYMNIA/ TECHNIQUE
Abstract: 7 figures. 4 tables. [Comparison of two methods, one using only Hypogymnia physodes. "Comparison of the results suggests that a clear picture of the nature and spread of air pollution may still be obtained from morphological examinations and various measured parameters in a single commonly occurring lichen species."]
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