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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 commutata Müll.Arg.
  Flora 67: 269 (1884)
T: Caracas, Venezuela, Dr Ernst s.n.; lecto: G, fide A.W.Archer, Mycotaxon 41: 253 (1991); isolecto: US.
  Thallus off-white to pale grey, folded and cracked, smooth and dull. Soredia and isidia absent. Apothecia numerous and crowded, disciform, adnate, 0.4–0.8 mm diam.; disc coarsely white-pruinose. Ascospores 1 per ascus, ellipsoidal, smooth, single-walled, 100–135 (–150) × 35–50 µm. CHEMISTRY: Thallus K+ yellow, KC–, C–, Pd+ yellow; containing haemathamnolic acid (major), lichexanthone (variable), thamnolic acid (trace) and baeomycesic acid (trace).
  A tropical to subtropical, corticolous species that is known from eastern Qld and N.S.W.; also in Brazil, Venezuela, south-eastern U.S.A. and China.  
  Archer (2004b)  

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

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