Sauteria 15: 24 (2008).

Protolog: Ramalina saxicola, thallo laciniis applanatis, tortuosis, pseudocypehllatis, acidis divaricaticis continens.

Protolog type data: Azores, Sao Miguel, Ponta da Ferraia, 1 m alt., 4 June 2003, F. Schumm 11104 (B - holotype; ABL, Hb Schumm - isotypes).

Type locality: Portugal, Azores, Sao Miguel, Ponta da Ferraia, on rock, 1 m, 4.6.2003, F. Schumm 11104 (B - holotype; ABL, Schumm - isotypes).

Type locality coordinates: 37°51'12.3"N, 25°51'1.3"W; 37.853417°, -25.850361°.

Molecular barcode: ITS 473 pb GU827303 18 February 2010, LSU 828 bp GU726344 locality missing (Serusiaux et al. 2010).

Thallus: fruticose, dull, shrubby, consisting of dense groups of 5-25 branches rooting in a common, often blackish base, up to 11 cm long, upright to hanging, greenish to yellowish grey, somewhat fragile, rather variable in branching pattern, with very few antler-like branches or with dense branches that become terete towards the tips, with wrinkled surface, cartilaginous strands reaching the surface and forming lines of pseudocyphellae, branches in section flattened, partly distinctly cork-screwlike contorted, up to ca. 5 mm in diameter, but usually much thinner; soredia absent. Apothecia marginal, 2-4 mm in diameter, flat to convex, ascospores 1-septate, hyaline, straight to slightly bent, 8.8-12 / 3.3-4.4 µm. Pycnidia submarginal, pale (Aptroot & Schumm 2008: 24).

Photobiont: Probably Trebouxia.

Chemistry: Medulla C-, K-, P-, UV+ white, divaricatic acid and unknown pigment, cortex with usnic acid (Aptroot & Schumm 2008: 25).

Ecology: On coastal rock and on lava of walls along coastal fields on the Azores islands of Pico, Terceira, Faial and Sao Miguel, where it is locally abundant.

Distribution Type: Endemic on the Azores (Sao Miguel, Faial, Pico, Terceira).

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