Mycotaxon 48: 383 (1993).
Protologue type data: Typus: Spain, Baleares, Minorca, Cala Morell, beneath prehistoric caves (Coves Troglodytes), NW vertical calcareous cliffs, 3.10.1991, G.B. & S. Feige (ESS-11058 - holotype, KOELN, MUB - isotypes, further isotypes will be distributed in Vezda, Lich. rar. exs. 64).
Type locality: Spain, Baleares, Menorca, Cala Morell, beneath prehistoric caves (Coves Troglodytes), NW vertical calcareous cliffs, 3.10.1991, G. B. & S. Feige (ESS 11058 - holotype; KOELN, MUB - isotypes, further isotypes in Vezda, Lich. Rar. Exs.: 64).
Type locality coordinates: 40°2'57.97"N, 3°52'57.18"E; 40.049435°, 3.88255°.
ITS barcode: Data lacking.
Description: Lichen. Thallus fruticose, greenish grey to whitish grey, pendant to suberect, whitish grey pruinose, branched; main branches prominent, flat, with a reticulate surface, ca. 2-3.5 x 0.1-1.2 cm; terminal branches terete; ca. 0.1-0.2 mm in diam. Cortex with periclinally arranged hyphae, hyaline, up to 35 µm thick. Medulla yellowish, inconspicuous, coalescent, sometimes not distinguishable from the cortex (=Darbishirella type). Algal layer discontinuous. Soredia or isidia absent. Ascomata or pycnidia unknown.
Photobiont: Belonging to the genus Trentepohlia (Feige & Lumbsch 1993: 383).
Chemistry: Gyrophoric acid (major), lecanoric acid (minor), orcellinic acid (trace) (Feige & Lumbsch 1993: 383 by HPLC and TLC).
Ecology: Saxicolous, on exposed calcareous cliffs in coastal areas, mainly in small caves in therock in somewhat shady places (Feige & Lumbsch 1993: 383).
Distribution type: Corse (France), Sardinia (Italy), Sicily: Aegadian Islands (Italy), Mallorca, Menorca (Baleares, Spain), Almeria (Spain), Saria island (Greece), Morocco.
Taxonomy: The species resembles morphologically a poorly developed Roccella species, but it can readily be distinguished by the presence of gyrophoric acid and the different anatomy of the thalli (Feige & Lumbsch 1993: 383).
Note: When Ingaderia troglodytica was described, the species was simultaneously recorded from Sardinia (Italy), Lampedusa (Italy), Almeria (Spain) and Morocco by the authors.
Distribution Database: Distributions
Distribution Database: Discover Life
Picture Database: Tropical Lichens
Molecular Database: Genbank
Synonym Database: Index Fungorum
Synonym Database: Mycobank