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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 yamblaensis (Elix) Elix
  Mycotaxon 87: 403 (2003)
Paraparmelia yamblaensis Elix, Mycotaxon 47: 115 (1993). T: Great Yambla Ridge, south-south-east of Culcairn, N.S.W., 16 Nov. 1989, J.A.Elix 23095; holo: CANB; iso: MEL.
  Thallus foliose, loosely adnate, to 6–8 cm wide. Lobes variable, moderately to sparingly imbricate, irregular to sublinear-elongate, subirregularly branched, 2–5 mm wide; laciniae occasionally developing, subdichotomously branched, 0.5–1.5 mm wide; apices subascending, crenulate, ±rotund. Upper surface pale grey, darkening, flat, dull, emaculate, smooth, lacking soredia and isidia; lobe margins commonly blackened. Lower surface jet black, brown at lobe apices; rhizines very sparse, simple, slender, short, concolorous. Apothecia scattered, sessile, 3–8 mm wide; disc concave, then undulate-distorted, brown to black-brown; thalline exciple thick and involute, becoming thin, persistent. Ascospores 7–8 × 5–6 µm. Pycnidia rare, immersed. Conidia 5 × 0.5–1 µm. CHEMISTRY: cortex K+ yellow; medulla K-, C-, KC-, P-; containing atranorin.
  A rare endemic species; common at the type locality.  
  Elix (1994n)  

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

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