Kappen, L/ Schroeter, B/ Hestmark, G/ Winkler, JB 1996: Field measurements of photosynthesis of umbilicarious lichens in winter. - Botanica Acta109: 292-298. [RLL List # 165 / Rec.# 9783] Keywords: COLD TEMPERATURES/ FREEZING/ PHOTOSYNTHESIS/ RESPIRATION/ TEMPERATURE/ UMBILICATE/ WINTER
Abstract: 6 fig. ["The photosynthetic performance of Lasallia pustulata and Umbilicaria spodochroa was measured both in the field on granitic rock in southern Norway and in the laboratory under controlled conditions of light and temperature."]