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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 velata (Turner) Nyl.
  Lich. Scand. 179 (1861)
Parmelia velata Turner, Trans. Linn. Soc. London 9: 143 (1808). T: Sussex, England, 1805, W.Borrer; holo: BM, n.v.*****Pertusaria rhodotropa Müll.Arg., Bull. Herb. Boissier 3: 637 (1895). T: Qld, C.Knight 308 p.p.; lecto: G, fide A.W.Archer, Telopea 4: 181 (1991.
  Thallus greyish white to off-white, thick, slightly cracked and areolate, smooth to slightly wrinkled, dull. Soredia and isidia absent. Apothecia numerous, crowded, disciform, immature apothecia irregularly hemispherical or subspherical, constricted at the base, 0.5–1.0 mm diam., mature apothecia becoming flattened and exposing the pale to dark reddish orange discs, 0.5–0.8 mm diam., slightly to densely white-pruinose. Ascospores 1 per ascus, ellipsoidal, thin-walled, smooth, 110–155 (–175) × 30–45 (–50) µm. CHEMISTRY: Thallus K–, KC+ orange-red, C+ red, Pd–; containing lecanoric acid (major), gyrophoric acid (trace), orsellinic acid (trace) and ±lichexanthone (trace to major).
  Corticolous and common in northern and eastern Australia (N.T., Qld and N.S.W.); a tropical to temperate species in both hemispheres, including Norfolk Is., New Zealand, Fiji, Vanuatu, New Caledonia and Papua New Guinea.  
  Archer (2004b)  

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

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