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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
Pyrgillus fuscus Aptroot

Biblioth. Lichenol. 44: 83 (1991)

T: Mt Lewis, 14 km SW of Mossman, Qld, 1983, L.Tibell 14622b; holo: UPS.

  Thallus grey. Ascomata 0.3–0.4 mm diam., 0.4–0.6 mm tall. Ascomatal wall to 300 μm thick; ostiole whitish, 100–200 μm diam. Ascospores reddish brown (K+ aeruginose), strongly bicolorous, with a dark median area and pale ends, ellipsoidal, with rounded ends, 10–12 × 5–7 μm; septum a distoseptum, c. 2 μm thick.
CHEMISTRY:Thallus UV+ yellow; lichexanthone detected with TLC; the ascospores probably contain an anthraquinone (K+ aeruginose).
  Known only from the bark of Ficus at the type locality in north-eastern Qld.  
  Aptroot (2009c)  

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

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