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Checklist of the Lichens of Australia and its Island Territories
Introduction | A–D | E–O | P–R | S–Z | Oceanic Islands | References
Pertusaria trevethensis A.W.Archer
  Mycotaxon 41: 248 (1991)
T: The Black Gap, Black Trevethen Ra., 21 km SSW of Cooktown, Qld, 4 July 1984, J.A.Elix 17336; holo: CANB.
  Thallus dull yellow-brown, smooth and glossy, slightly cracked; margin well defined. Soredia and isidia absent. Apothecia conspicuous, verruciform, concolorous with the thallus, scattered, rarely confluent, flattened-hemispherical, 0.5–1.0 mm diam. Ostioles inconspicuous, black, punctiform, 1–4 per verruca. Ascospores 4 per ascus, fusiform, smooth, 80–105 × 28–35 µm. CHEMISTRY: Thallus K–, KC–, C–, Pd–; containing stictic acid (major), 4,5-dichloro-lichexanthone (minor) and constictic acid (trace).
  This endemic, saxicolous species 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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