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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
Graphis librata C.Knight

Trans. New Zealand Inst. 16: 404 (1884)

T: New Zealand, locality unknown, C.Knight 67:23; lecto: WELT n.v., fide G.Hayward, New Zealand J. Bot. 15: 571 (1977).

  Thallus pale greyish white, thin, smooth, dull. Ascomata conspicuous, black, scattered, sometimes clustered, straight, curved or sinuous, occasionally branched, semi-immersed to sessile, 0.8–2.0 mm long, 0.15–0.30 mm wide, with a thin thalline margin; lips closed. Proper exciple usually laterally carbonised, sometimes almost completely carbonised. Hymenium 80–100 µm thick, not inspersed. Ascospores 8 per ascus, irregularly uniseriate, transversely (5–) 6–8-locular, 15–25 (–30) × 5–8 µm, I+ blue.
CHEMISTRY: Norstictic acid.
  A rather common, corticolous species in Qld, N.S.W. and Tas.; also in the southern U.S.A., the Caribbean, Brazil, New Zealand and Lord Howe Island.  
  Archer (2009a)  

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

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