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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 stanthorpensis Elix & Kantvilas
  Mycotaxon 71: 92 (1999). T: Queensland, Paling Yard Creek, 21 km ESE of Stanthorpe, 28°50'S, 151°59'E, 1000 m, on granite rocks at margin of grazed area and wet sclerophyll forest, J. A. Elix 35786, 6 Sept. 1993; holo: CANB.  
  Thallus foliose, loosely adnate to adnate, to 4-7 cm wide.  Lobes imbricate or not, radiating, flat becoming sublinear to subirregular, irregularly branched, 1-3 mm wide, developing sublinear-elongate laciniae, 0.7-1.5 mm wide; apices of the marginal lobes subrotund.  Upper surface yellow-green, dull in centre but shiny at lobe apices, emaculate, with transverse or irregular cracks, without isidia or soredia.  Medulla white.  Lower surface ± dull, smooth, pale tan to dark brown; rhizines moderately dense, simple, 0.3-0.5 mm long, concolorous or becoming darker.  Apothecia common, sessile or shortly pedicellate, 0.7-3.5 mm wide;  disc concave at first, becoming ± flat or undulate, dark brown;  thalline exciple smooth, thick, involute, becoming thin and slightly lacerate.  Ascospores ellipsoidal, 8-10 x 4-6 µm.  Pycnidia common, immersed.  Conidia bifusiform, 6-7 x 0.7-1 µm. CHEMISTRY: Cortex K-; medulla K-, C-, KC-, P-;  containing usnic acid (minor), diffractaic acid (major), barbatic acid (trace), 4-O-demethylbarbatic acid (trace).
  This endemic Australian species seems to be rare on rocks in the Great Dividing Range in southern Queensland, in the vicinity of Stanthorpe.  
  Elix & Kantvilas (1999b)  

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

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