Search for: [References = "Coxson, D.S., Kershaw, W, \(1983\). The ecology of Rhizocarpon superficial II. The seasonal response of net photosynthesis and respiration to temperature, moist and light. Canadian Journal of Botany, 61\(2\), 3019\-3030. https\:\/\/doi.org\/10.1139\/b83\-339"]