Description: Lichen. Thallus erect, 4- 7 cm high, bicolorous, basal parts brownish black to black, apical parts pale brown to brown, shiny. Main branches distinct and coarse, with some tertiary branches, short lateral spinules between the branches common. Soralia ?ssural, concave to plane, with isidioid spinules. Pseudocyphellae absent, but young or poorly developed soralia may resemble them. Apothecia and Pycnidia unknown.

Photobiont: Data lacking.

Chemistry: No secondary substances (by TLC).

Ecology: On rocks and boulders, rarely on trees in humid habitats.

Distribution type: Rare, suboceanic in southern Finland, Norway and Sweden. Europe, Asia, Hawaii.

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