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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 elaeodes (Elix) Elix & J.Johnst.
  in J.A.Elix, J.Johnston & P.M.Armstrong, Bull. Brit. Mus. (Nat. Hist.), Bot. 15: 236 (1986); Parmelia elaeodes Elix, Austral. J. Bot. 29: 354 (1981). T: south of Countegany along Nimmitabel road, N.S.W., 29 Mar. 1976, J.A.Elix 1980; holo: MEL.  
  Thallus foliose, adnate to tightly adnate, to 4–7 cm wide. Lobes imbricate or not, flat, sublinear-elongate, irregularly branched, 1–2 mm wide; apices subrotund. Upper surface yellow-green, sometimes becoming olive-green near centre and blackening with age, shiny, becoming dull and developing transverse or irregular cracks, emaculate, lacking soredia and isidia; lobe margins commonly black. Medulla white. Lower surface black; rhizines dense to margins, short, simple, black. Apothecia sessile, 1–3.5 mm wide; disc concave, dark brown; thalline exciple entire, becoming undulating and irregularly cracked. Ascospores 6–8 × 4.5–5.5 µm. Pycnidia common. Conidia bifusiform, 5–6 × 0.5 µm. CHEMISTRY: cortex K-, UV-; medulla K-, C-, KC+ rose, P-; containing usnic acid, norlobaridone (major) and loxodin (minor).
  Rare, endemic, on rock in upland areas of eastern Australia (S.A., Qld, N.S.W. and A.C.T.) with moderate rainfall.  
  Elix (1994z)  

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

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