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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 filsonii Elix & J.Johnst.
  in J.A.Elix, J.Johnston & P.M.Armstrong, Bull. Brit. Mus. (Nat. Hist.), Bot. 15: 251 (1986). T: south-west of Herberton, Qld, 27 June 1984, J.A.Elix 16639 & H.Streimann; holo: CANB.  
  Thallus small-foliose, adnate, to 5–7 cm wide. Lobes imbricate, sublinear-elongate, irregularly branched, 0.2–0.8 (–1) mm wide; laciniae often developing in thallus centre, finely branched, subascending, 0.1–0.4 mm wide. Upper surface yellow-green, darkening with age, shiny at least near lobe apices, emaculate, smooth, without soredia; isidia scattered, cylindrical, 0.1–0.3 mm high, becoming dense and coralloid-branched in older parts of thallus; isidia apices syncorticate. Medulla white. Lower surface shiny, black; rhizines sparse, simple, short, black. Apothecia and pycnidia not seen. CHEMISTRY: cortex K-, UV-; medulla K+ yellow then dark red, C-, P+ intense yellow; containing usnic acid, norstictic acid and connorstictic acid.
  Found on dry rock surfaces in hinterland areas of south-western W.A., Qld, N.S.W., A.C.T., Vic. and Tas. Also in *****.  
  Elix (1994z)  

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

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