E. Timdal 2007: Phyllopsora. - In: T. H. Nash, III, C. Gries and F. Bungartz: Lichen Flora of the Greater Sonoran Desert Region. Volume 3. . Lichens Unlimited, Arizona State University, Tempe pp. 273-274. [RLL List # 210 / Rec.# 30392] Keywords: SONORAN DESERT/ UNITED STATES/ MEXICO/ PHYLLOPSORA
Abstract: [Notes on possible taxa in the region.]