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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
Carbacanthographis marcescens (Fée) Staiger & Kalb

in B.Staiger, Biblioth. Lichenol. 85: 109 (2002)

Graphis marcescens Fée, Essai Crypt. écorc. 38 (1825); — Graphina marcescens (Fée) Müll.Arg., Mém. Soc. Phys. Genève 29(8): 42 (1887).

T: ad corticem Bonplandia trifoliata,South America; lecto: G, fide M.Wirth & M.E.Hale, Smithsonian Contr. Bot. 40: 40 (1978); isolecto: M n.v.

  Thallus greyish green, thin, uneven, dull. Ascomata white, straight or curved, rarely branched, 1–3 mm long, 0.25–0.30 mm wide, with a conspicuous powdery thalline margin. Proper exciple laterally carbonised, hidden by the thalline margin. Hymenium 50–60 µm thick. Ascospores 8 per ascus, narrowly ellipsoidal, transversely locular to submuriform, 4–5 × 1–2-locular, 12–14 × 5–6 µm, I+ pale blue.
CHEMISTRY: Salazinic acid (major), norstictic acid (trace), protocetraric acid (trace).
  A widely distributed, tropical, corticolous species; uncommon in rainforest in north-eastern Qld. Also in Cuba, U.S.A., Guyana, Brazil, West Africa, Thailand and the Solomon Islands.  
  Archer (2009a)  

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

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