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 orchardii Elix | ||
| Mycotaxon 63: 427 (1997). T: Queensland. Pine Mountain, 24 km NE of Rockhampton, 23°11'S, 150°37'E, 240 m, on volcanic rocks in monsoon forest with emergent Araucaria cunninghamii, J. A. Elix 34723, 26 Aug. 1993; holo: CANB. | ||
| Thallus small-foliose to subcrustose, saxicolous, tightly adnate, 2-7 cm wide. Lobes congested, subirregular to sublinear-elongate, subdichotomously branched, 0.3-0.7(-1.0) mm wide. Upper surface yellow-green, darkening with age, flat, emaculate, commonly areolate towards thallus centre, lacking soredia; isidia cylindrical, simple or commonly branched, to 1.0 mm high, ±forming a dense mat in the thallus centre; isidia apices epicorticate, inflated but rarely erumpent, not sorediose. Medulla white. Lower surface flat, pale brown to dark brown; rhizines sparse, simple, concolorous. Apothecia rare, sessile, 1-2 mm in wide; disc concave, dark brown; thalline exciple densely isidiate. Ascospores ellipsoidal, 7-9 x 4-5 µm. Pycnidia not seen. CHEMISTRY: Cortex K-; medulla K-, C-, KC+ rose, P-; containing usnic acid (major), norlobaridone (major), loxodin (minor). | ||
| X. orchardii appears to be confined to central and northern Qld. | ||
| Elix (1997c) | ||
| Checklist Index |
| Introduction | A–D | E–O | P–R | S–Z | Oceanic Islands | References |
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