Zobel, K 1986: Analysis of the ability of the Hypogymnia physodes to indicate atmospheric pollution in mountainous conditions. - Folia Cryptogamica Estonica21: 4-7. [RLL List # 130 / Rec.# 20797] Keywords: USSR/ LAKE BAIKAL REGION/ AIR POLLUTION
Abstract: 2 tables. [Study in the in the Lake Baikal region found that "we have no evidences to state that pollution influences the presence/absence of H. physodes differently in different altitudinal zones; 2) the presence/absence of H. physodes is influenced significantly by pollution ... as well as by elevation." In Russian; English abstract.]