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 examplaris Elix & J.Johnst. | ||
| in J.A.Elix, J.Johnston & P.M.Armstrong, Bull. Brit. Mus. (Nat. Hist.), Bot. 15: 243 (1986). T: north of Pimba along the Stuart Highway, S.A., 8 Sept. 1983, J.A.Elix 11043A & L.A.Craven; holo: CANB. | ||
| Thallus foliose, adnate, to c. 5 cm wide. Lobes imbricate or not, mostly flat, sublinear, irregularly branched, 0.7–1.5 (–3) mm wide; some marginal lobes and laciniae subascending; upper surface weakly convex; lower surface canaliculate. Upper surface yellow to pale yellow-green, dull, irregularly cracked and older lobes becoming distinctly rugulose and markedly areolate, lacking maculae, soredia and isidia; lobe margins often blackened at apices. Medulla white. Lower surface straw-yellow to pale tan, often darkening to grey-black towards lobe apices; rhizines sparse, simple, brown. Apothecia subpedicellate, 1–4 mm wide; disc deeply concave then ±flat, dark brown; thalline exciple smooth, thick, entire, involute becoming thinner, crenulate to deeply incised. Ascospores 7 × 4–5.5 µm. Pycnidia common. Conidia bifusiform, 4–5 × 0.5 µm. CHEMISTRY: cortex K-, UV-; medulla K+ yellow then dark red, C-, P+ intense yellow; containing usnic acid, salazinic acid, consalazinic acid and ± traces of protocetraric acid. | ||
| Very rare, endemic, known from S.A. and N.S.W. Grows on rock. | ||
| Elix (1994z) | ||
| Checklist Index |
| Introduction | A–D | E–O | P–R | S–Z | Oceanic Islands | References |
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