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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 subdistorta (Kurok.) Hale
  Phytologia 28: 489 (1974); Parmelia subdistorta Kurok., J. Hattori Bot. Lab. 32: 212 (1969). T: 10 km west of Red Cliffs [Redcliffs] along the Werrimull road, Vic., 8 Dec. 1965, S.Kurokawa 6617; holo: TNS; iso: M.  
  Thallus foliose, loosely to moderately adnate, forming rosettes, to 6–10 cm wide. Lobes imbricate, strongly convoluted, sublinear-elongate, dichotomously branched, 0.8–1 mm wide at margins; laciniae overgrowing thallus centre, revolute, dichotomously branched, 0.3–0.5 (–0.7) mm wide. Upper surface pale yellow-green, strongly convex, shiny, emaculate, minutely rugulose, lacking soredia and isidia; lobe apices often blackened. Medulla white. Lower surface brown to dark brown, darkening to dark greyish brown at apices; rhizines sparse, simple, brown. Apothecia rare, sessile, 2–5 mm wide; disc concave, pale to dark brown; thalline exciple thick, revolute. Ascospores 10 × 7 µm. Pycnidia common. Conidia bifusiform, 6–8 × 0.5 µm. CHEMISTRY: cortex K-, UV-; medulla K-, C-, KC+ rose, P-; containing usnic acid, loxodin and norlobaridone.
  Scattered, endemic, in mallee scrub and arid shrubland areas of southern Australia (W.A., S.A., N.S.W. and Vic.). Grows on soil or spreads onto pebbles from soil.  
  Elix (1994z)  

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

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