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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 inselbergia (Elix) Elix
  Mycotaxon 87: 399 (2003); Paraparmelia inselbergia Elix, Mycotaxon 59: 412 (1996). T: Western Australia. Yilliminning Rock, 18 km NE of Narrogin, 32°57'S, 117°22'E, 320 m, on large exposed granite outcrop, J. A. Elix 41058, H. T. Lumbsch & H. Streimann, 12 Sept. 1994; holo: CANB; iso: HO.  
  Thallus small-foliose to subcrustose, saxicolous, adnate, forming irregular rosettes, 1-2 cm wide.  Lobes rarely imbricate, radiating at the apices, sublinear, subirregularly to subdichotomously branched, 0.3-1.0 mm wide.  Upper surface pale ash-grey, black-marginate towards the lobe apices, flat, smooth and shiny at the tips, becoming dull, emaculate, developing dense granular pruina subapically, lacking soredia and isidia; older lobes becoming rugose, cracked and areolate.  Medulla white.  Lower surface pale tan to brown, darker towards the apices; rhizines sparse, simple, thick, to 0.2 mm long, concolorous.  Apothecia scattered, subpedicellate, to 1.0 mm wide; disc globose at first, then concave becoming ±flat, dark brown to black-brown; thalline exciple thick, entire then ±cracked, densely pruinose.  Ascospores ellipsoid, 7-9 x 4-5 µm.  Pycnidia numerous, slightly emergent.  Conidia weakly bifusiform, 5-6 x 1 µm. CHEMISTRY: Cortex K+ yellow; medulla K-, C-, P-; containing usnic acid, salazinic acid (major), consalazinic acid (minor), constipatic acid (minor/trace), protoconstipatic acid (minor/trace).
  Known only from granite in south-western W.A.  
  Elix (1996a)  

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

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