Preliminary version 1 August 2012
Ramalina maderensis Mot.
Fragm. Flor. Geobot. 6: 706 (1960).
Synonym: Index Fungorum
Protolog: Data lacking.
Type locality: Portugal, Madeira, Mandon (H-NYL 36945 - holotype) TLC: lecanoric acid (Krog & Osthagen 1980: 282).
Barcode: Data lacking.
Coordinates: 32°45'N, 17°0'W.
Thallus: fruticose, rigid, erect to subpendulous, up to 8 cm long, with several laciniae arising from a broad holdfast. Laciniae palmate or sublinear, 2 - 6 - 10 mm broad, matt or more rarely shiny, usually with longitudinally arranged pseudocyphellae, either near the base or along their entire length. Soralia absent. Cortex 25 - 50 µm thick, chondroid tissue well developed, partly as a disrupted cylinder adjoining the cortex, partly as strands traversing the dense, compressed medulla. Apothecia apical or subapical, often spurred, disc up to 12 mm in diameter, crenate or radially split, spores 10 - 12 - 14 / 3 - 4 µm. Pycnidia marginal and laminal, with pale ostioles, often mixed with tubercles which may be initial apothecia or pycnidia (Krog & Østhagen 1980: 282).
Chemistry:
Race I: Cortex: Usnic acid. Medulla: Lecanoric acid. Medulla C + red (Krog & Osthagen 1980: 282)
Race II: Cortex: Usnic acid. Medulla: 4-O-demethylbarbatic acid. Medulla C + orange (Krog & Osthagen 1980: 282).
Ecology: Saxicolous.
Molecular data: Genbank
Distribution: Canary Islands, Cape Verde Islands, Madeira. Database
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