The pendulous, fruticose lichen Ramalina menziesii Tayl. is a conspicuous canopy component of the deciduous blue oak Quercus douglasii H. & A. woodland of central coastal California. With destructive sampling techniques the standing biomass of R. menziesii and other epiphtyic lichens was determined to be 515 g per tree or 706 kg/ha. Ramalina menziesii represented an average of 94% of total epiphytic lichens by weight. Monthly litterfall, collected in traps, was used to estimate canopy component biomass turnover, nutrient content of leaves and Ramalina menziesii, and canopy component nutrient turnover. In comparison with blue oak leaves, Ramalina menziesii contained 32% as much N, 29% P, 25% K, 4% Ca, 11% Mg, and 41% Na. Ramalina biomass was estimated to turn over 29% per yr and as a consequence this lichen contributed 13% N, 4% P, 7% K, 1% Ca, 3% Mg, and 8% Na of the annual canopy nutrient turnover. Although the study area is much drier than those of other similar studies, R. menziesii contributed as much to biomass and nutrient turnover as other epiphytic lichens from wetter locations.