Nash, TH", III/ Sigal, LL 1979: Gross photosynthetic response of lichens to short-term ozone fumigations. - The Bryologist82: 280-285. [RLL List # 104-76 / Rec.# 13365] Keywords: PARMELIA/ HYPOGYMNIA/ OZONE/ AIR POLLUTION/ CALIFORNIA/ PHOTOSYNTHESIS/ FUMIGATION
Abstract: 1 figure. [Parmelia sulcata and Hypogymnia enteromorpha from San Diego County, California, were subjected to 12 hour ozone fumigations at three different concentrations. Significant reduction in gross photosynthesis was documented. P. sulcata was more sensitive to the treatments than was H. enteromorpha, "... a fact consistent with field observations in southern California where extensive ozone injury occurs."]