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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 alexandrensis Elix & J.Johnst.
  in J.A.Elix, J.Johnston & P.M.Armstrong, Bull. Brit. Mus. (Nat. Hist.), Bot. 15: 186 (1986). T: Alexandra, Tucker Hill, Otago, New Zealand, 6 Jan. 1982, J.A.Elix 9900; holo: CHR.  
  Thallus foliose, loosely adnate, to c. 5 cm wide. Lobes loosely imbricate, flat, linear to sublinear-elongate, subdichotomously or digitately branched, 0.3–1 (–1.5) mm wide; marginal lobes slightly broader; apices of laciniae often subascending. Upper surface yellow-green, glossy, emaculate, smooth, lacking soredia; lobe margins and apices blackened; isidia scattered, simple then gnarled and sparingly branched, apices epicorticate and becoming inflated and erupting, not sorediose. Medulla white. Lower surface dull, rugose, black; rhizines sparse, simple, robust, black. Apothecia not seen. Pycnidia rarely developed. Conidia bifusiform, 6–7 × 0.5 µm. CHEMISTRY: cortex K-, UV-; medulla K+ yellow then dark red, C-, P+ intense yellow; containing usnic acid, norstictic acid, connorstictic acid and ±salazinic acid (trace).
  On rock in dry subalpine areas of N.S.W., Vic. and Tas.; also on the South Is. of New Zealand (Otago).  
  Elix (1994z)  

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

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