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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 concomitans Elix & J.Johnst.
  in J.A.Elix, J.Johnston & P.M.Armstrong, Bull. Brit. Mus. (Nat. Hist.), Bot. 15: 210 (1986). T: 0.25 miles [0.4 km] beyond Lookout, Alexandra, Otago, New Zealand, 11 Apr. 1971, W.Martin; holo: CHR.  
  Thallus foliose, unattached or loosely adnate, forming rosettes to 0.5–2 cm wide. Lobes imbricate or not, ±separated near thallus margin, sublinear-elongate, subdichotomously to dichotomously branched, 0.2–1 (–2) mm wide. Upper surface pale yellow to pale yellow-green, weakly convex, dull, ±maculate, smooth, lacking isidia; lobe apices (and rarely margins) becoming swollen and developing terminal, subcapitate soralia; soredia farinose. Medulla white. Lower surface partly canaliculate, pale yellow to yellow-brown; rhizines sparse to moderately dense, simple or rarely sparsely branched, black. Apothecia and pycnidia not seen. CHEMISTRY: cortex K-, UV-; medulla K+ dingy brown, C-, P+ orange-red; containing usnic acid, fumarprotocetraric acid, ±succinprotocetraric acid and ±protocetraric acid (trace).
  Very rare, on soil in subarid areas of Australia (south-western W.A. and Murray Mallee, Vic.); more common on the South Is. of New Zealand (central Otago, north Canterbury and Marlborough).  
  Elix (1994z)  

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

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