Australian Biological Resources Study
| Checklist of the Lichens of Australia and its Island Territories | ||
| Introduction | A–D | E–O | P–R | S–Z | Oceanic Islands | References | ||
| Lecanora marginata (Schaer.) Hertel & Rambold | ||
| Bot. Jahrb. Syst. 107: 494 (1985); Lecidea marginata Schaer., Natur. Anz. Allg. Schweiz. Ges. Naturw. 2: 10 (1818). T: Susten, Switzerland, L.M.Schaerer; topo: M. | ||
| Thallus rimose to rimose-areolate, yellowish white to pale yellow, epruinose. Soredia absent. Prothallus black. Apothecia sessile to constricted at the base, 0.8–1.6 mm diam.; disc blackish brown, slightly grey-pruinose; margin blackish brown, thin, entire, distinct at first, later becoming excluded. Cortex and algal cells absent. Excipulum 70–150 µm thick basally, 30–80 µm thick laterally, lacking crystals; inner part hyaline; outer part grey-green. Epihymenium dark green to olivaceous, K–, without crystals, c. 8–12 µm thick. Hymenium, subhymenium and hypothecium hyaline. Paraphyses sparingly branched and thickened apically. Ascospores ellipsoidal, 8.0–12.0 × 4.5–6.0 µm. CHEMISTRY: Thallus and apothecial margin K+ yellow, C–, Pd+ yellow; medulla: K–, C–, Pd+ yellow; containing atranorin (major), usnic acid (major) and chloroatranorin (minor). |  |
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| In Australia this bipolar species occurs on exposed, siliceous rocks in the alpine zone in N.S.W. and Vic. | ||
| Lumbsch & Elix (2004) | ||
| Checklist Index |
| Introduction | A–D | E–O | P–R | S–Z | Oceanic Islands | References |
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