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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
Parmotrema demethylmicrophyllinicum Elix
  Lichenes Australasici Exsicc. 114 (1986) T: Hanging Pinnacle (Dempseys Peak), 7 km E of Mt Garnet, Qld, 29 June 1984, J.A.Elix 16844 & H.Streimann; holo; CANB; iso: CHR, MEL, US.  
  Thallus loosely adnate, coriaceous, to 8–10 cm wide. Lobes irregular, 5–12 mm wide; margins lobulate-laciniateor not; apices rotund; cilia apical, conspicuous, 1–4 mm long. Upper surface pale grey, emaculate, smooth, lacking soredia and isidia. Medulla white. Lower surface black, with a broad, brown, erhizinate marginal zone; rhizines sparse, simple, black. Apothecia common, pedicellate, 5–10 mm wide; disc perforate; thalline exciple eciliate. Ascospores 12–14 × 6–8 µm. Pycnidia common. Conidia sublageniform, 7–10 × 1 µm. CHEMISTRY: cortex K+ yellow; medulla K-, C+ red, KC+ red, P-; containing atranorin, chloroatranorin, 4-O-demethylmicrophyllinic acid (major), olivetoric acid (trace) and anziaic acid (trace).
  A relatively common species occurring on exposed rock in northern Qld; also known from South Africa.  
  Elix (1994t)  

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

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