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 | ||
| Pertusaria ewersii A.W.Archer & Elix | ||
| in A.W.Archer, Biblioth. Lichenol. 69: 65 (1997) T: Davies Creek Natl Park, Qld, 16°58’S, 145°33’E, 30 Sept. 1991, W.H.Ewers 8651; holo: CANB. |
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| Thallus thin, pale fawn, cracked, smooth and dull. Soredia and isidia absent. Apothecia verruciform, scattered, rarely confluent, concolorous with the thallus, flattened-hemispherical, 0.5–0.8 mm diam. Ostioles conspicuous, black, 1 per verruca. Ascospores (3 or) 4 per ascus, ellipsoidal, smooth, 64–75 × 25–32 µm. CHEMISTRY: Thallus K–, KC–, C–, Pd–; containing 2,4,5-trichlorolichexanthone (major), 2,5-dichlorolichexanthone (major), 2-chlorolichexanthone (major), stictic acid (major), confluentic acid (minor), constictic acid (minor), 2’-O-methylmicrophyllinic acid (trace) and microphyllinic acid (trace). |
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| A endemic, corticolous species that is known only from the type locality in north-eastern Qld. | ||
| Archer (2004b) | ||
| Checklist Index |
| Introduction | A–D | E–O | P–R | S–Z | Oceanic Islands | References |
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