in Pitard & Harmand, Bull. Soc. Bot. France, Mém. 22: 23 (1911).
Basionym:
Synonym: Index Fungorum
Type: Spain, Canary Islands, Hierro, Riscos de Sabinosa, 400 m, 4. 1906, C. J. Pitard (PC - Lectotype, designated by Krog & Østhagen (1980: 285), BM, W - isolectotypes).
Thallus: fruticose, soft and fragile, up to 4 cm high, intricately branched, forming loose, irregularly spreading colonies without a distinct, deliminated holdfast. Laciniae 0.3 - 3 mm broad, pale green-grey to yellow-grey, fistulose, unevenly inflated, perforate and often fenestrate. Pseudocyphellae irregularly distributed, punctiform or shortly linear, developing into perforations. Soralia absent. Cortex indistinct, chondroid cylinder continuous, medulla dense, discontinuous, unevenly distributed on the inner wall of the chondroid cylinder. Apothecia subapical or apical and spurred, flat to convex at maturity, up to 6 mm in diameter, spores 10 - 14 / 4 - 5 µm (Krog & Østhagen 1980: 285).
Chemistry: Sekikaic acid, more or less salazinic acid (Krog & Østhagen 1980: 285). Usnic acid.
Ecology: Saxicolous, rarely corticolous.
Molecular data: Genbank
Distribution: Database
Note: