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 donneri Elix & J.Johnst. | ||
| in J.A.Elix, J.Johnston & P.M.Armstrong, Bull. Brit. Mus. (Nat. Hist.), Bot. 15: 231 (1986). T: south-west corner, hundred of Warrow, south-eastern end of Marble Ra., north-west of Port Lincoln, Eyre Peninsula, S.A., 25 Aug. 1967, N.N.Donner 2086; holo: AD. | ||
| Thallus small-foliose to subcrustose, very tightly adnate, to 2–4 cm wide. Lobes not imbricate, contiguous or widely separate, flat, sublinear, dichotomously branched, 0.2–0.8 (–1) mm wide. Upper surface yellow-green to yellow, darkening to deep olive-brown or blackish in older lobes, dull, emaculate, lacking soredia and isidia; becoming cracked and often forming areolae 0.2–0.5 mm wide in thallus centre. Medulla white. Lower surface mainly black, partly dark-brown; rhizines dense, simple, black or part of lower surface adhering directly to substratum. Apothecia common, subpedicellate to sessile, 0.3–1 mm wide; disc concave, black; thalline exciple smooth, narrow, entire, ±crenulate. Ascospores 7–11 × 5–6 µm. Pycnidia rare. Conidia bifusiform, 5–6 × 0.5 µm. CHEMISTRY: cortex K-, UV-; medulla K+ yellow then dark red, C-, P+ yellow; containing usnic acid, barbatic acid (major), norstictic acid (major), connorstictic acid (minor), ±hyposalazinic acid (trace) and with or without unidentified compounds (trace). | ||
| Very rare, endemic, on exposed acidic rocks in hinterland ranges of south-western W.A. and Eyre Peninsula (S.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.