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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 dimidiata Vain.

Acta Soc. Fauna Fl. Fenn. 7(2): 108 (1890)

Graphina dimidiata (Vain.) Zahlbr., Cat. Lich. Univ. 2: 404 (1923).

T: Lafayette, Minas Gerais, Brazil, Mar. 1885, E.A.Vainio 332; lecto: TUR-V 27241 n.v., fide M.Wirth & M.E.Hale, Smithsonian Contr. Bot. 40: 36 (1978).

  Thallus pale fawn, thin, smooth, dull. Ascomata scattered, sessile, simple, straight or curved, 0.5–1.5 mm long, 0.15–0.20 mm wide; lips initially closed, becoming slightly open, with a thin thalline margin at the base; disc faintly white-pruinose. Proper exciple laterally carbonised. Hymenium 80–100 µm thick, not inspersed. Ascospores 8 per ascus, irregularly uniseriate, muriform, 6–8 × 2–3-locular, 20–28 × 8–10 µm, I+ blue.
CHEMISTRY: No lichen compounds detected.
  An uncommon, corticolous species in the N.T.; also in Brazil, Costa Rica and Dominica.  
  Archer (2009a)  

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

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