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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
Lithothelium decumbens (Müll.Arg.) Aptroot

Australas. Lichenol. 60: 36 (2007)

Parathelium decumbens Müll.Arg., Hedwigia 32: 134 (1893); Pyrenula decumbens (Müll.Arg.) Upreti, Nova Hedwigia 66: 568 (1998).

T: Brisbane, Qld, F.M.Bailey 161; holo: G.

[Pyrenula nitida auct. non (Weigel) Ach.: J.Müller, Rep. Australas. Assoc. Advancem. Sci. 1895: 458 (1895) p.p.]

  Thallus greyish green, corticate. Ascomata solitary, subglobose, c. 0.4–0.7 mm diam., erumpent from the substratum, the sides often partly covered by the thallus; ostiole pale, lateral. Hamathecium IKI–. Asci 40–60 × 10–12 μm, with a rounded ocular chamber. Ascospores 8 per ascus, irregularly uniseriate, 3-septate, fusiform, with rounded ends, 15–20 × 7–10 μm, red-brown; lumina rounded, the terminal lumina often elongate and separated from the exospore only by a thin endospore layer. Pycnidia unknown..
  Known from bark in rainforest in eastern Qld. Palaeotropical, in lowland forest.  
  Aptroot (2009c)  

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

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