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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 cicatricosa Müll.Arg
  Proc. Roy. Soc. Edinburgh 11: 461 (1882)
T: Socotra, [Yemen], 1876, Balfour s.n.; lecto: G; fide A.W.Archer, Mycotaxon 44: 17 (1992).
  Thallus pale yellowish white to pale yellowish green, slightly tuberculate and cracked, smooth and dull. Soredia and isidia absent. Apothecia numerous, conspicuous, verruciform, concolorous with the thallus, crowded, sometimes confluent, flattened-hemispherical, often irregular in outline, occasionally becoming constricted at the base, 0.8–1.5 mm diam. Ostioles inconspicuous, pale brown or translucent, 0.1–0.2 mm diam., 1 (–3) per verruca, sometimes slightly sunken. Ascospores 2 per ascus, ellipsoidal, rough, 100–150 (–200) × 35–50 µm. CHEMISTRY: Thallus K–, KC–, C–, Pd–; containing 2,4,5-trichlorolichexanthone (major), stictic acid (major), 2,4-dichlorolichexanthone (minor), 2-5-dichlorolichexanthone (minor), ±2-chlorolichexanthone (trace) and constictic acid (trace).
  A tropical to subtropical, corticolous species that occurs in eastern Qld; also in Socotra, Sri Lanka, Mauritius, Papua New Guinea, New Caledonia, Vanuatu and Fiji.  
  Archer (2004b)  

Checklist Index
Introduction | A–D | E–O | P–R | S–Z | Oceanic Islands | References

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