T. G. A. Green, T. H. Nash, III and O. L. Lange 2008: Physiological ecology of carbon dioxide exchange. - In: T. H. Nash, III: Lichen Biology. Second Edition. . Cambridge University Press, Cambridge. viii+486 pages pp. 152-181. [RLL List # 212 / Rec.# 30002] Keywords: GENERAL/ TEXTBOOK/ REVIEW/ PHOTOSYNTHESIS/ RESPIRATION/ CARBON DIOXIDE EXCHANGE/ PHYSIOLOGICAL ECOLOGY