Lange, OL/ Redon, J 1983: Epiphytische Flechten im Bereich einer chilenischen "Nebeloase" (Fray Jorge). II. Okophysiologische Charakterisierung von CO2- Gaswechsel und Wasserhaushalt. - Flora174: 245-284. [RLL List # 120-88 / Rec.# 11041] Keywords: CHILE/ OWN/ FOG ZONE/ ECOPHYSIOLOGY/ WATER RELATIONS/ GAS EXCHANGE/ EVERNIOPSIS/ USNEA/ HETERODERMIA/ RAMALINA
Abstract: 4 tables. 29 figures. ["Under controlled conditions, photosynthesis and respiration are reported as influenced by water content of the thalli, light intensity, and temperature, for selected species...." The authors conclude that the "...capability of the thalli to use air humidity as their main water source and their ability to conduct positive photosynthesis at extremely low thallus water potentials, are necessary characteristics for the existence of these species..." in the Chilean fog oasis. Measurements were made on Everniopsis trulla, Usnea lacerata, Heterodermia spinulosa, and Ramalina cactacearum.]