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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
Pseudocyphellaria punctillaris (Müll.Arg.) D.J.Galloway
  Graphis Scripta 5: 9 (1993); Stictina punctillaris Müll.Arg., Hedwigia 30: 48 (1891); Stictina fragillima f. punctillaris (Müll.Arg.) Stizenb., Flora 81: 129 (1895); Sticta fragillima f. punctillaris (Müll.Arg.) Zahlbr., Cat. Lich. Univ. 3: 382 (1925). T: "Whelman Pools" [Whelanian Pools], near Mt Bellenden Ker, Qld, 1889, F.M.Bailey 567; holo: G 002544.  
  Thallus rosette-forming to irregularly spreading, closely attached, 5–10 (–15) cm wide. Lobes broadly rounded or shortly linear-laciniate, 1–2 (–3) cm long, 5–8 (–12) mm wide, subdichotomously branching towards margins, crowded-imbricate centrally; apices rounded or truncate; lobe margins entire, sinuous, becoming markedly lobulate-phyllidiate centrally, thickened and sometimes inrolled below. Upper surface pale yellowish fawn to pale red-brown when dry, dark malachite-green to glaucous blue when wet, undulate to wrinkled, conspicuously verrucose-scabrid, thick, coriaceous; without isidia, maculae or soredia. Phyllidia marginal, rarely regenerating from surface cracks, 0.2–1.5 mm diam., simple to subcoralloid, lobulate, distinctly jointed at base. Pseudocyphellae white, numerous, often crowded, conspicuous, 0.1–0.5 mm diam., round to elongate, conical-verruciform. Medulla white. Photobiont Nostoc. Lower surface pale whitish or buff at margins to red-brown centrally, thickly tomentose from margins to centre. Pseudocyphellae white, scattered, most noticeable at margins. Apothecia sparse to occasional, submarginal and laminal, 1–3 mm diam., sessile; disc pale to dark red-brown; exciple obscuring disc when young, persisting as a coarse dentate-verrucose margin at maturity, pale brownish; epithecium red-brown; hymenium colourless. Ascospores broadly ellipsoidal, 1-septate, 25–28 × 8.5–11 µm, pale red-brown. CHEMISTRY: Tenuiorin, methyl gyrophorate, gyrophoric acid, 7β-acetoxyhopane-22-ol, hopane-7β,22-diol (trace) and hopane-15α,22-diol.
  Occurs in north-eastern Qld, on tree trunks, vines, tree ferns and fence posts in montane rainforest. Also in the eastern Palaeotropics from Indonesia to the Hawaiian Is.  
  Galloway et al. (2001)  

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

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