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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 constipata (Kurok. & Filson) Elix & J.Johnst.
  in J.A.Elix, J.Johnston & P.M.Armstrong, Bull. Brit. Mus. (Nat. Hist.), Bot. 15: 215 (1986); Parmelia constipata Kurok. & Filson, Bull. Natl Sci. Mus., ser. B, 1: 37 (1975). T: Koonamore Vegetation Reserve, S.A., May 1971, R.D.Seppelt; holo: MEL.  
  Thallus foliose, adnate, thick, to 4–5 (–7) cm wide. Lobes sometimes imbricate, flat, subirregular to sublinear-elongate, irregularly branched, 1–2 (–3) mm wide; sometimes developing laciniae towards thallus centre, 0.5–1 mm wide. Upper surface pale yellow to yellowish green, dull, sometimes shiny towards apices, emaculate, slightly rugulose, lacking soredia; lobes often black-margined towards apices; isidia dense, cylindrical, extensively branched, coralloid or ±flattened, epicorticate and ultimately inflated at apices, becoming erumpent, robust (0.2 mm wide), to 2 mm high. Medulla white. Lower surface pale brown, darker towards lobe apices; rhizines sparse to moderately dense, simple, concolorous. Only immature apothecia observed: subpedicellate, to 1 mm wide; thalline exciple thick, isidiate, involute. Pycnidia not seen. CHEMISTRY: cortex K-, UV-; medulla K-, C-, KC+ rose, P-; containing usnic acid, norlobaridone, constipatic acid, protoconstipatic acid, ±loxodin, ±scabrosin 4-acetate 4'-butyrate, ±scabrosin 4-acetate 4'-hexanoate, ±scabrosin 4,4'-dibutyrate and ±scabrosin 4,4'-diacetate (trace).
  Rather rare, endemic, in arid, inland W.A., S.A., N.T., Qld and N.S.W. Grows on soil, rarely spreads onto rock.  
  Elix (1994z)  

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

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