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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
Xanthoparmelia filarszkyana (Gyeln.) Hale
  Phytologia 28: 487 (1974); Parmelia filarszkyana Gyeln., Ann. Mycol. 36: 278 (1938). T: Round Swamp, Ogunbil, Tamworth, N.S.W., July 1906, W.Gardner; holo: BP. *****Parmelia praetermissa Kurok. & Filson, Bull. Natl Sci. Mus., ser. B, 1: 41 (1975). T: Olive Grove Station, 14.48 km south of Quorn, S.A., 30 Oct. 1970, R.B.Filson 11995; holo: MEL; iso: TNS.  
  Thallus foliose, tightly adnate, to 6–8 cm wide. Lobes barely imbricate, irregular, irregularly branched, 1–3 mm wide, laciniae lacking; marginal lobes with rotund apices. Upper surface pale yellow-green, darkening with age, dull, flat, emaculate, lacking soredia and isidia; older central lobes becoming rugose, developing transverse or irregular cracks and becoming areolate; lobe margins often black. Medulla white. Lower surface flat, pale tan to brown, blackening near lobe apices; rhizines moderately dense, short, slender, simple, concolorous. Apothecia sessile, 2–10 mm wide; disc deeply concave becoming ±flat, dark brown; thalline exciple smooth, entire, undulating. Ascospores 8–10 × 5–6 µm. Pycnidia common. Conidia bifusiform, 6–7 × 0.5 µm. CHEMISTRY: cortex K-, UV-; medulla K-, C-, KC+ rose, P-; containing usnic acid, ±loxodin, norlobaridone, ±protoconstipatic acid and ±constipatic acid; rarely containing conorlobaridone (trace) and conloxodin (trace).
  Widespread and common, on rock throughout Australia (W.A., N.T., S.A., Qld, N.S.W., A.C.T., Vic. and Tas.); also on the South Is. of New Zealand.  
  Elix (1994z)  

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

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