Nash, T.H., Ryan, B.D., Gries, C., Bungartz, F., (eds.) 2004. Lichen Flora of the Greater Sonoran Desert Region. Vol 2.
NOTE (F. Bungartz, 2022):Lepraria lobificans does not occur in North America according to Lendemer (2013), but the species occurs in Eurpoe and the name is thus NOT a synonym of Lepraria finkii.
The Description from the Sonoran Flora below more accurately applies to L. finkii, i.e., the species that for years in North America has been misidentified as L. lobificans. Thallus: crustose, leprose, irregular, indeterminate to +determinate, usually continuous; sometimes becoming partly loose from the substrate, sometimes with delimited sublobes upper surface: bright green, greenish gray, or whitish gray, white in eroded patches, dull, even or wrinkled soredia: fine to coarse fluffy, up to 100(-200) µm in diam., usually with long projecting hyphae up to 0.1 mm long or sometimes lacking on exposed parts of thallus surface medulla: distinct, white lower surface: white, formed by lower part of medulla, tomentum not evident Spot tests: thallus K- or + yellow, C-, KC-, P+ orange Secondary metabolites: atranorin, zeorin and stictic acid with satellites. Substrate and ecology: on soil, over mosses, on bark, in moderately shaded and dry niches on soil banks, rock overhangs and tree trunks World distribution: Africa, Asia, Australia, Europe, North America and New Zealand Sonoran distribution: Arizona, southern California and Sonora from sea-level to 2650 m.