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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 versicolor (Müll.Arg.) Hale
  Phytologia 28: 490 (1974); Parmelia versicolor Müll.Arg., Flora 64: 506 (1881), nom. illeg. non Parmelia versicolor (Pers.) Ach., Methodus 190 (1803); Parmelia callifolia Kurok. in S.Kurokawa & R.B.Filson, Bull. Natl Sci. Mus., ser. B, 1: 42 (1975). T: Eurio, S.A., Nova Hollandia [Australia], June 1880, A.Richards; holo: G.  
  Thallus foliose, loosely adnate, to 15 cm wide. Lobes at margin imbricate, free, sublinear, irregularly branched, 1.5–3 mm wide; laciniae growing out from lobules on margins of older lobes, flat to convolute, irregularly branched, to 1.5 mm wide; apices crenulate. Upper surface pale yellow-green, convex, dull, sometimes slightly maculate, smooth at marginal lobes, older portions becoming rugulose and cracked, ±pruinose near lobe apices, lacking soredia and isidia. Medulla white. Lower surface flat or weakly canaliculate, black to brown-black, brown in a broad zone near apices; rhizines moderately dense to dense, simple, concolorous. Apothecia very rare, sessile, to 4 mm wide; disc concave, black-brown; thalline exciple smooth, thick, involute, undulating. Ascospores 7–9 × 4–6.5 µm. Pycnidia not seen. CHEMISTRY: cortex K-, UV-; medulla K+ yellow then dark red, C-, KC-, P+ yellow then orange; containing usnic acid, salazinic acid and ±consalazinic acid.
  Common, endemic, on soil and over debris in subarid and arid areas of W.A., S.A., Qld, N.S.W. and Vic.  
  Elix (1994z)  

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

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