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 wilsonii Müll.Arg. subsp. wilsonii | ||
| Bull. Herb. Boissier 1: 39 (1893). T: Upper Maffra, Gippsland,Vic., 1891, F.R.M.Wilson 362; holo: G; iso: MEL. | ||
| Thallus continuous or rimose to verruculose, yellowish grey to greenish grey, epruinose. Soredia absent. Prothallus whitish grey. Apothecia sessile, 0.5–1.2 mm diam.; disc blackish brown to dark red-brown, epruinose; margin concolorous with the thallus, thin, smooth, entire. Cortex hyaline, distinct, inspersed with small crystals, 10–20 µm thick laterally and basally. Amphithecium with large and small crystals; small crystals soluble in KOH (melacarpella-type). Parathecium hyaline, 15 µm thick, with numerous small crystals insoluble in KOH. Epihymenium reddish brown, c. 10–15 µm thick, K–, without crystals (glabrata-type). Hymenium, subhymenium and hypothecium hyaline. Paraphyses sparingly branched and slightly thickened apically. Ascospores broadly ellipsoidal, 8.5–12.5 × 6.0–8.0 µm. CHEMISTRY: Thallus and apothecial margin K+ yellow, C–, Pd+ yellow; containing usnic acid (major), atranorin (minor), chloroatranorin (minor) and two unidentified fatty acids. |  |
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| This common lichen is found on siliceous rocks in open to moderately shaded habitats in temperate to subtropical areas of south-eastern and eastern Australia. Occurs in eastern Qld, N.S.W., Vic. and Tas. Also in South America. | ||
| Lumbsch & Elix (2004) | ||
| Checklist Index |
| Introduction | A–D | E–O | P–R | S–Z | Oceanic Islands | References |
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