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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 insculpta (Stizenb.) D.J.Galloway
  Lichenologist 17: 305 (1985). Stictina insculpta Stizenb., Flora 81: 129 (1895); Stictina impressula Müll.Arg., Flora 71: 22 (1888) non. Nyl. [in Flora 57: 71 (1874), based on Stictina tomentosa var. impressula Nyl., Ann. Sci. Nat. Bot., sér. 5, 7: 305 (1867) from South America]; Sticta insculpta (Stizenb.) Zahlbr., Cat. Lich. Univ. 3: 388 (1925). T: Mt Bellenden Ker, Qld, 1887, W.A.Sayer; holo: G 0020099. ***** Stictina impressula var. sublaevis Müll.Arg., Hedwigia 30: 48 (1891); Stictina insculpta var. sublaevis (Müll.Arg.) Stizenb., Flora 81: 129 (1895); Sticta insculpta var. sublaevis (Müll.Arg.) Zahlbr., Cat. Lich. Univ. 3: 388 (1925). T: Bellenden Ker district, Qld, 1889, F.M.Bailey 575 p.p.; holo: G 002105.  
  Thallus rosette-forming to irregularly spreading in entangled clones, loosely attached centrally, 5–12 (–20) cm wide. Lobes irregularly divided, subdichotomously branching at apices to complex-imbricate centrally, 0.5–1 (–4) cm long, 1–4 (–8) mm wide; lobe margins irregularly notched or incised, occasionally densely isidiate or lobular-phyllidiate. Upper surface olive-grey suffused brownish when dry, vivid navy-blue to blue-black when wet, irregularly undulate, conspicuously dimpled, punctate-impressed, rather fragile and papery when dry, isidiate-phyllidiate, maculate, without pseudocyphellae or soredia. Maculae minute, white, effigurate to ±reticulate (×10 lens). Isidia at first terete to subgranular, becoming flattened-phyllidiate. Phyllidia mainly marginal, simple to coralloid, to 2 mm tall. Medulla white. Photobiont Nostoc. Lower surface pale yellow-brown or whitish and glabrous at margins, grey- to brown-black-tomentose centrally. Pseudocyphellae prominent, white. Apothecia rare, sessile, 1–2.5 mm diam.; disc red-brown, matt, epruinose; exciple pale pinkish brown, wrinkled-striate, occasionally white-tomentose below; epithecium pale yellow-brown; hymenium colourless; hypothecium opaque yellow-brown. Ascospores ellipsoidal-fusiform, 1–3-septate, 28–33.5 × 6.5–8.5 µm, yellow-brown to red-brown. CHEMISTRY: Methyl gyrophorate, gyrophoric acid, 7β-acetoxyhopane-22-ol, hopane-7β,22-diol (trace) and hopane-15α,22-diol.
  Occurs in north-eastern Qld, on bark of trees and shrubs, on rotting logs and rocks in lowland to montane rainforest. Also known in the Palaeotropics from Sri Lanka to Fiji.  
  Galloway et al. (2001)  

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

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