Lichenes Rariores Exsiccati 33 (nos 321-330): 4, no. 330 (1997).

Basionym: Physcia opuntiella Buschardt & Poelt, Flora 169: 24 (1980).

Protolog: Thallus parvus, primum subfoliaceus, demum lobis multis articulatis fruticulosus, griseus ad fuscus, in apicibus loborum setis hyalinis unicellularibus + dense obsitus. Lobi blastidia formantes elliptica ad subglobosa. Structura thalli paraplectenchymatica. Superficies inferior subalbida ad fuscescens, non distincte corticata. Cellulae hypharum infimae papillatae. Rhizinae non evolutae. Apothecia pycnidiaque desunt. Algae protococcoideae.

Protolog type data: Typus: Bergamasker Alpen, Italien, Prov. Bergamo: Val Cavallina, von Trockenrasen durchsetzter thermophiler, ESE exponierter Hangwald kurz nördlich Trescore Balneario, + 250 m, an offenen, von Kieselschichten durchsetzten Kalkfelsen. 30.5.1975 J. Poelt (GZU Holotypus, Isotypen M, Vezda, UPS).

Type locality: Italy, Prov. Bergamo, Bergamasker Alpen, Val Cavallina, von Trockenrasen durchsetzter thermophiler, ESE exponierter Hangwald kurz nördlich Trescore Balneario, an offenen, von Kieselschichten durchsetzten Kalkfelsen, 250 m, 30.5.1975, J. Poelt (GZU - holotype; M, Vezda, UPS - isotypes).

Thallus: squamulose, much and finely branched, lobes convex and elongate, with small hyaline hairs (Aptroot et al. 2008: 28).

Photobiont: Algae protococcoid.

Chemistry: No lichen substances.

Ecology: On rock and bark.

Distribution type: Probably cosmopolitan (Aptroot et al. 2008: 29).

Taxonomy: Data lacking.

Note:

Distribution Database: Distributions

Distribution Database: Discover Life

Picture Database: Tropical Lichens

Molecular Database: Genbank

Synonym Database: Index Fungorum

Synonym Database: Mycobank

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