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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 boonahensis Elix & J.Johnst.
  Mycotaxon 33: 354 (1988). T: Mt French, Mt French National Park, near Boonah, Qld, 9 Apr. 1985, R.W.Rogers 7640; holo: MEL.  
  Thallus small-foliose, adnate, to 2–3 cm wide. Lobes separate, sublinear, irregularly branched, 0.8–2 mm wide; apices subrotund. Upper surface pale yellow-green, flat, shiny, emaculate, smooth, lacking isidia and soredia. Medulla mostly white, with a distinct yellow-orange zone adjacent to lower cortex. Lower surface flat, pale brown to dark brown; rhizines moderately dense, simple, 0.3–0.5 mm long, yellow-brown to black. Apothecia sessile, c. 0.5 mm wide (immature); disc concave, brown; thalline exciple smooth, thick, involute. Ascospores 8–9 × 5–6 µm (possibly not mature). Pycnidia commonly developed. Conidia bifusiform, 5–7 × 1 µm. CHEMISTRY: cortex K-, UV-; white medulla K-, C-, KC+ yellow, P-; pigmented medulla K+ violet; containing usnic acid, barbatic acid (major), 4-O-demethylbarbatic acid (minor), constipatic acid (trace), protoconstipatic acid (trace) and skyrin (in the pigmented medulla).
  Rare, endemic, known from Qld and N.S.W. Grows on rock.  
  Elix (1994z)  

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

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