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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 hybridiza Elix & J.Johnst.
  Mycotaxon 29: 364 (1987). T: King George Beach, Kangaroo Island, S.A., 30 Oct. 1985, J.A.Elix 19748 & L.H.Elix; holo: CANB.  
  Thallus foliose, adnate to tightly adnate, to 5–8 cm wide. Lobes barely imbricate, flat, sublinear-elongate, irregularly branched, without laciniae, 1–2 mm wide; apices subrotund. Upper surface yellow-green, darkening with age, dull, emaculate, lacking soredia and isidia; older lobes becoming rugulose, irregularly or transversely cracked and eventually areolate; areolae 1–2.5 mm wide; lobe apices often black-margined. Medulla white. Lower surface pale tan to brown, often darkening to grey-black at lobe apices; rhizines moderately dense to dense, simple, slender, brown. Apothecia sessile, 1–4 mm wide; disc concave then undulating, dark brown; thalline exciple smooth, thick, involute, becoming thinner and crenate. Ascospores 7–9 × 4–5 µm. Pycnidia common. Conidia bifusiform, 5–6 × 0.5 µm. CHEMISTRY: cortex K-, UV-; medulla K+ yellow then deep red, C-, P+ yellow-orange; containing usnic acid, barbatic acid (major), salazinic acid (major), 4-O-demethylbarbatic acid (trace), ±norstictic acid (trace) and consalazinic acid (minor).
  Endemic, scattered on rock in cooler, wetter areas of southern Australia (W.A., S.A., N.S.W., Vic. and Tas.).  
  Elix (1994z)  

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

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