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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 paraparmeliformis Elix
  in Elix & Kantvilas, Mycotaxon 73: 450 (1999). T: Australian Capital Territory: Shepherds Lookout above Murrumbidgee River, 15.5 km W of Canberra, 35°15'S, 148°58'E, 560 m, on porphyry rocks on dry hillside with Callitris, J. A. Elix 26717, 10 April 1992; holo: CANB.  
  Thallus foliose, adnate, to 5 cm wide.  Lobes imbricate or contiguous, sublinear to subirregular, irregularly branched, 1-2.5 mm wide, laciniate; laciniae short, sublinear, 0.5-1.0 mm wide; marginal lobes with rotund apices.  Upper surface grey to pale yellow-grey, shiny, ±flat, emaculate, lacking soredia and isidia; older central lobes becoming rugulose, with margins often blackened, rarely lobulate.  Medulla white.  Lower surface flat, ivory to pale tan, darkening near the apices of the lobes; rhizines sparse, short, slender, simple, concolorous.  Apothecia sessile to substipitate, 2-6 mm wide; disc deeply concave and then ±flat, dark brown; thalline exciple smooth, margins entire, involute then ±undulating.  Ascospores ellipsoid, 8-10 x 5-6 µm.  Pycnidia common, black, immersed.  Conidia bifusiform, 6-7 x 0.7 µm. CHEMISTRY: Cortex K-;  medulla K-, C-, KC+ rose, P-;  containing isousnic acid (major), loxodin (minor), norlobaridone (major).
  Known from rocks at two localities in the A.C.T.  
  Elix & Kantvilas (1999a)  

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

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