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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 tropica Vain.
  Cat. Welw. Afr. Pl. 2: 404 (1901)
T: Pungo Andongo, Angola, 730–1160 m, 1857, F.Welwitsch 429; lecto: TUR-V 6672, fide A.W.Archer, Biblioth. Lichenol. 69: 211 (1997).
  Thallus off-white to greyish white to greyish green, smooth or tuberculate, glossy, sometimes slightly areolate and cracked. Soredia and isidia absent. Apothecia disciform, often numerous and crowded, 0.6–1.5 (–2.0) mm diam.; discs dark but white-pruinose, sorediate when sterile. Ascospores 1 per ascus, ellipsoidal, (115–) 150–180 × (25–) 35–50 µm; wall 5–10 µm thick. CHEMISTRY: Thallus K+ violet, KC+ wine-red, C–, Pd–; containing hypothamnolic acid (major), ±lichexanthone (major); rarely with lichesterinic acid (minor).
  Corticolous in north-eastern Qld; also in SW Africa, Thailand, Indonesia and Papua New Guinea.  
  Archer (2004b)  

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

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