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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 pinguiacida (Elix & J.Johnst.) Elix
  Mycotaxon 87: 401 (2003)
Paraparmelia pinguiacida Elix & J.Johnst., Brunonia 9: 146 (1987). T: Moralana Gorge road, 35 km N of Hawker, Flinders Ranges, 31°35'S, 138°28'E, S.A., 28 Oct. 1984, J.A.Elix 17836 & L.H.Elix; holo: CANB.
  Thallus small-foliose to subcrustose, tightly adnate, forming irregular patches or rosettes to 10 cm wide. Lobes scarcely imbricate, contiguous, irregular to sublinear-elongate, irregularly branched, 0.5–1.5 mm wide. Upper surface deep slate grey to deep lead grey, paler and shiny subapically, black-margined at lobe apices, flat or becoming convex, dull, emaculate, becoming cracked and areolate in thallus centre, lacking soredia and isidia. Lower surface very pale tan; rhizines dense, simple, slender, concolorous. Apothecia common, sessile to subpedicellate, 1–2.5 mm wide; disc concave, becoming flat, black; thalline exciple smooth, thick, continuous, undulate. Ascospores 6–7 × 4–6 µm. Pycnidia not seen. CHEMISTRY: cortex K+ yellow; medulla K-, C-, KC-, P-; containing atranorin, dehydroconstipatic acid (major), pertusaric acid (minor), ±constipatic acid (trace) and ±protoconstipatic acid (trace).
  An uncommon endemic species occurring in arid, inland areas of S.A. and N.S.W.  
  Elix (1994n)  

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

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