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 darlingensis Elix & J.Johnst. | ||
| Mycotaxon 29: 363 (1987). T: Serpentine Dam, Darling Range, W.A., 28 Oct. 1982, J.A.Elix 10796 & L.H.Elix; holo: CANB. | ||
| Thallus small-foliose to subcrustose, very tightly adnate, to 2–3 cm wide. Lobes not imbricate, flat, widely separate, linear-elongate, dichotomously but sparingly branched, 0.2–0.8 (–1) mm wide. Upper surface yellow-green, darkening to deep olive-brown or blackish in older lobes, dull, emaculate, often developing transverse cracks in older lobes, lacking soredia and isidia. Medulla white. Lower surface black; rhizines dense, simple, robust, black. Apothecia and pycnidia not seen. CHEMISTRY: cortex K-, UV-; medulla K+ yellow, C-, P+ orange; containing usnic acid, stictic acid (major), constictic acid (minor), norstictic acid (minor), cryptostictic acid (trace), barbatic acid (major) and 4-O-demethylbarbatic acid (minor). | ||
| Very rare, endemic, known from W.A. and S.A. Grows on rock. | ||
| Elix (1994z) | ||
| Checklist Index |
| Introduction | A–D | E–O | P–R | S–Z | Oceanic Islands | References |
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