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 nashii Elix & J.Johnst. | ||
| in J.A.Elix, J.Johnston & P.M.Armstrong, Bull. Brit. Mus. (Nat. Hist.), Bot. 15: 293 (1986). T: north-east of Hyden, W.A., 8 Aug. 1981, T.H.Nash 20392; holo: ASU. | ||
| Thallus foliose, adnate, to 5–6 cm wide. Lobes imbricate or not, sublinear-elongate, irregularly branched, 1–2 (–3) mm wide; occasionally narrower laciniae overlie thallus centre. Upper surface yellow-green, darkening, flat to slightly concave, shiny at least near apices, emaculate, smooth, without soredia; lobe margins often blackened, particularly towards apices; isidia dense, simple, cylindrical, occasionally becoming sparingly branched; isidia apices syncorticate and intact. Medulla white. Lower surface flat, dull, smooth, black; rhizines sparse to moderately dense, simple, slender, 0.3–0.5 mm long, black. Apothecia not seen. Pycnidia not seen. CHEMISTRY: cortex K-, UV-; medulla K-, C-, KC-, P-; containing usnic acid, diffractaic acid (major) and barbatic acid (trace), 4-O-demethylbarbatic acid (trace) and 3-a-hydroxybarbatic acid (trace). | ||
| Very rare, endemic, on rock in subarid south-western W.A. | ||
| Elix (1994z) | ||
| Checklist Index |
| Introduction | A–D | E–O | P–R | S–Z | Oceanic Islands | References |
This work is copyright. Apart from any use as permitted under the Copyright Act 1968, no part may be reproduced by any process without prior written permission from Australian Biological Resources Study. Requests and inquiries concerning reproduction and rights should be addressed in the first instance to Dr P. McCarthy. These pages may not be displayed on, or downloaded to, any other server without the express permission of ABRS.