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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 metastrigosa (Elix) Hale
  Mycotaxon 20: 79 (1984); Parmelia metastrigosa Elix, Austral. J. Bot. 29: 360 (1981). T: north-east slopes of Mt Canobolas, near Orange, N.S.W., 1 Apr. 1978, J.A.Elix 4627; holo: MEL.  
  Thallus foliose, loosely adnate, to 7–12 cm wide. Lobes very rarely or not imbricate, linear-elongate, dichotomously or irregularly branched, subascending or not, 1.5–4 (–5) mm wide; margins broadly sinuate. Upper surface yellow-green, commonly convex, shiny, becoming dull, emaculate, smooth, lacking soredia and isidia; lobe margins commonly black. Medulla white. Lower surface ±canaliculate, pale brown to dark blackish brown; rhizines very dense, simple or often dichotomously branched, concolorous. Apothecia subpedicellate, 10–12 mm wide; disc becoming flattened or slightly convex, dark brown; thalline exciple entire, undulating. Ascospores 8.5–10.5 × 4.5–5.5 µm. Pycnidia numerous. Conidia bifusiform, 5–6 × 0.5 µm. CHEMISTRY: cortex K-, UV-; medulla K+ yellow or yellow then pale red, C-, KC-, P-; containing usnic acid, hypostictic acid, hyposalazinic acid and hypoconstictic acid.
  This endemic species has only been found on exposed, subalpine rock on Mt Canobolas, N.S.W., where it is particularly common. Grows on rock and pebbles.  
  Elix (1994z)  

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

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