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Data Set Maintenance: Data set compiled (Flora of Australia Vol. 55 Lichens-Lecanorales, Parmeliaceae). Data set author(s): Nöske, N. M. @EXCL@ Clerc, P. (04-11-02). Data set not revised; to be published after submission.

Nomenclature: Current taxonomic status: accepted. Taxonomic rank: species. Currently accepted name Xanthoparmelia filarszkyana (Gyeln.) Hale. Xanthoparmelia. Parmeliaceae Zenker (1827); Lecanorineae; Lecanorales.

Type Information: Basionym: Parmelia filarszkyana Gyeln. Type: Xanthoparmelia filarszkyana (Gyeln.) Hale.

Biogeography: Southern hemispheric. Continent: Australasia (widespread and common). Checklist records: Australia and New Zealand.

Thallus: Foliose, subdivided into main parts, irregular, lobed; lobes imbricate (barely imbricate); separate thallus parts 1-3 mm wide. Thallus Size and Differentiation: 6-8 cm in diameter; apex rounded. Upper Surface: Lime green (pale yellow-green, darkening with age, lobe margins often black), matt; fissurate (developing cracks and becoming areolate); fissures transversely oriented oriented; immaculate; wrinkled (older central lobes becoming rugose); not isidate; not sorediate; not lobulate. Lower Surface: Present (flat), brown (pale tan to brown); attached by holdfasts (tightly adnate); rhizinate (short, slender); rhizines moderately abundant, brown (concolorous with lower surface), not branched.

Reproduction Strategy: With sexual (and possible asexual) stages. Ascocarps: Apothecioid, soon sessile, 2-10 mm in diam.. Margin: Smooth, distinct (entire, undulating). Disk: Urceolate (and becoming +/-flat), brown (dark brown).

Secondary Metabolites: Present; throughout the thallus medulla, norlobaridone and usnic acid (other secondary metabolites: +/- loxodin, +/- protoconstipatic acid, +/- constipatic acid; rarely containing conorlobaridone (trace) and conloxodin (trace)).

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