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 luminosa (Elix) Hale | ||
| Mycotaxon 20: 79 (1984); Parmelia luminosa Elix, Austral. J. Bot. 29: 357 (1981). T: Gudgenby River Gorge, 4.5 km south of Tharwa, A.C.T., 26 June 1979, J.A.Elix 6118; holo: MEL; iso: CANB. ***** [Parmelia dichromatica auct. non Hale [= Xanthoparmelia dichromatica (Hale) Hale]: R.B.Filson, Checklist of Australian Lichens 1st edn, 67 (1983)]. | ||
| Thallus foliose, adnate, to 6–10 cm wide. Lobes imbricate, contiguous or not, flat, subirregular, irregularly branched, 2–5 (–8) mm wide; apices crenulate, ±round. Upper surface bright yellow-green, fading after storage, sometimes becoming deep olive-green, shiny, emaculate, becoming rugose and cracked, lacking soredia and isidia. Medulla mostly white; lower medulla yellow-orange to red-orange. Lower surface black; brown or often intense red-brown or orange-brown near lobe apices; rhizines moderately dense, simple, robust, concolorous. Apothecia sessile, 2–5 mm wide; disc concave, red-brown to dark brown; thalline exciple involute, becoming undulating and developing irregular cracks. Ascospores 7–10 × 4.5–5.5 µm. Pycnidia numerous. Conidia bifusiform, 6–7 × 1 µm. CHEMISTRY: cortex K-, UV-; white medulla K+ yellow then dark red, C-, KC-, P+ intense yellow; pigmented medulla K+ violet; containing skyrin (in pigmented medulla), usnic acid, salazinic acid (major) and consalazinic acid (minor). | ||
| Relatively common, endemic, scattered on rock in temperate upland areas of southern Australia (W.A., S.A., N.S.W. and A.C.T.). | ||
| Elix (1994z) | ||
| Checklist Index |
| Introduction | A–D | E–O | P–R | S–Z | Oceanic Islands | References |
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