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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 prodomokosii Hale, Elix & J.Johnst.
  in J.A.Elix & J.Johnston, Mycotaxon 31: 506 (1988). T: 1 km east of Pine Gap, Macdonnell Ranges, N.T., 17 Sept. 1983, J.A.Elix 11309 & L.A.Craven; holo: CANB. ***** [Xanthoparmelia subdomokosii auct. non (Hale) Hale: J.A.Elix, J.Johnston & P.M.Armstrong, Bull. Brit. Mus. (Nat. Hist.), Bot. 15: 328 (1986)].  
  Thallus foliose, adnate to tightly adnate, to 5–7 cm wide. Lobes contiguous or slightly imbricate, sublinear-elongate to subirregular, irregularly branched, 1–2.5 mm wide; apices ±round. Upper surface pale yellow-green, flat, shiny, emaculate, lacking soredia and isidia; older lobes becoming rugulose, transversely or irregularly cracked and ±areolate; lobe margins often black. Medulla white. Lower surface flat, pale brown to brown; rhizines sparse to moderately dense, simple, slender, concolorous or dark brown. Apothecia common, subpedicellate, 1–2 (–8) mm wide; disc concave, dark brown to black; thalline exciple smooth, involute, becoming thin, entire. Ascospores 6–8 × 4–5 µm. Pycnidia common. Conidia bifusiform, 5–6 × 0.5 µm. CHEMISTRY: cortex K-, UV-; medulla K-, C-, KC-, P-; containing usnic acid, hypoprotocetraric acid (major), ±4-O-demethylnotatic acid (trace), ±scabrosin 4,4'-dibutyrate, ±scabrosin 4-acetate 4'-butyrate, ±scabrosin 4-acetate 4'-hexanoate, ±scabrosin 4,4'-diacetate (trace) and with or without unidentified scabrosins (trace).
  Relatively common, on rock in arid central Australia (W.A. and N.T.); also in South Africa.  
  Elix (1994z)  

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

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