Nash, T.H., Ryan, B.D., Gries, C., Bungartz, F., (eds.) 2004. Lichen Flora of the Greater Sonoran Desert Region. Vol 2.

Life habit: lichenized Thallus: crustose, effuse, greenish or gray-green, usually intermixed with algal films, +gelatinous when moist photobiont: primary one a chlorococcoid green alga, secondary one absent Ascomata: apothecial, immersed to emergent disc: pale yellow, urceolate-concave exciple: entire, composed of +pseudoparenchymatous or conglutinated parallel hyphae hymenium: hyaline, I- or I+ yellow, K/I-; paraphyses: simple, or rarely a few apically-branched, indistinctly septate, slender, 0.5-1 µm wide; apices: slightly to distinctly swollen; hypothecium: shallow, often indistinct asci: cylindrical to cylindrical-clavate, thin-walled, with a distinct apical dome that sometimes has a narrow ocular chamber, K/I- or rarely blue, the apical dome K/I-, 8-spored ascospores: hyaline, 1-3(-5)-septate, ellipsoid, fusiform or fusiform-acicular, thin-walled, smooth perispore: absent Conidiomata: unknown Secondary metabolites: none detected Substrate: mostly on acidic, moist substrates, that are usually covered by a +gelatinous algal film Geography: Europe and North America. Notes: Absconditella with irs cholorococcoid green alga is distinguished from Dimerella and Gyalecta, both of which have Trentepohlia as the photobiont. All the species are in conspicuous with minute apothecia and rarely collected.