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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 austroconstrictans Elix
  Mycotaxon 47: 120 (1993). T: Morton National Park, north-east of Nerriga, N.S.W., 30 Mar. 1977, J.A.Elix 3070; holo: CANB. [Xanthoparmelia constrictans auct. non (Nyl. ex Cromb.) Hale: J.A.Elix, J.Johnston & P.M.Armstrong, Bull. Brit. Mus. (Nat. Hist.), Bot. 15: 217 (1986)]  
  Thallus foliose, loosely to moderately adnate, to 5–7 cm wide. Lobes moderately to sparingly imbricate, flat, linear-elongate, dichotomously to subdichotomously branched, often irregularly widened and constricted, 0.4–1.5 mm wide; not ascending at apices. Upper surface yellow-green, darkening with age, shiny, emaculate, smooth, lacking soredia and isidia; lobe margins black. Medulla white. Lower surface flat, smooth, jet black, brown at lobe apices; rhizines moderately dense, ±subapically grouped, simple, tufted or not, black. Apothecia not seen. Pycnidia common. Conidia bifusiform, 5–8 × 0.5 µm. CHEMISTRY: cortex K-, UV-; medulla K+ yellow then deep red, C-, P+ orange-red; containing usnic acid, salazinic acid (major) and consalazinic acid.
  Rare, endemic, restricted to the mountains of south-eastern Australia (N.S.W. and Vic.). Grows on rock.  
  Elix (1994z)  

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

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