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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
Diorygma wilsonianum (Müll.Arg.) A.W.Archer

Australas. Lichenol. 56: 10 (2005)

Graphis wilsoniana Müll.Arg., Bull. Herb. Boissier 1: 57 (1893).

T: Lakes Entrance, Vic., Mar. 1889, F.R.M.Wilson 1495; holo: G; iso: MEL.

  Thallus off-white, thin, smooth, dull, with patches of pale orange-brown soredia. Ascomata inconspicuous, black, with a white-pruinose epihymenium, open, immersed, scattered or rarely clustered, irregular in shape, rarely simple and linear, often branched, sometimes substellate, 1–3 mm long, 0.2–0.3 mm wide, in clusters to 4 mm long and 2 mm wide. Proper exciple thin, laterally carbonised. Hymenium 125–150 µm thick, I–. Ascospores 8 per ascus, transversely (9–) 10–16-locular, 45–50 (–54) × (6–) 8–9 µm, I+ blue.
CHEMISTRY: Norstictic acid.
  An endemic, corticolous species in southern Vic.; known only from the type locality.  
  Archer (2009a)  

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

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