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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 dracaenae Vain.

Cat. Welwitsch Afr. Pl. 2(2): 439 (1901), as dracenae

T: Golungo Alto, Carengue, Angola, on Dracaena parviflora, F.Welwitsch 397 p.p.;holo: TUR-V 27561 n.v.

Graphis immersicans A.W.Archer, Austral. Syst. Bot. 14: 262 (2001). T: Mount Stuart, 10 km S of Townsville, Qld, 9 July 1984, H.Streimann 31317; holo: CANB; iso: B, H, US.

  Thallus pale olive-green, thin, subtuberculate, smooth, dull. Ascomata inconspicuous, black, thin, immersed, sinuous, branched (sometimes intricately), 1–6 mm long, c. 0.1 mm wide, with a conspicuous thalline margin; lips closed or becoming very slightly open at maturity. Proper exciple completely carbonised. Hymenium 70–100 µm thick, not inspersed. Ascospores 8 per ascus, biseriate, transversely 6–8-locular, 20–25 (–31) × 6–7 µm, I+ blue.
CHEMISTRY: No lichen compounds detected.
  Corticolous in Qld, N.S.W., Vic. and Tas.; also in Costa Rica and Angola.  
  Archer (2009a)  

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

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