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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@ Bungartz F. (06-05-15). Data set not revised; to be published after submission.

Nomenclature: Current taxonomic status: accepted. Taxonomic rank: species. Currently accepted name Xanthoparmelia mannumensis (Elix) Elix & J. Johnst. Xanthoparmelia. Synonyms: Parmelia mannumensis Elix; Parmeliaceae Zenker (1827); Lecanorineae; Lecanorales.

Type Information: Basionym: Parmelia mannumensis Elix. Type: Parmelia mannumensis Elix; type specimen label data: J. A. Elix 4215; holo: MEL.

Biogeography: Southern hemispheric; subtropical and temperate. Continent: Australasia. Checklist records: Australia (very rare, endemic; S.A., N.S.W. and Tas.).

Thallus: Foliose, irregular (dichotomously to irregularly branched), lobed; lobes linear (sublinear-elongate), imbricate (densely imbricate, +/- forming a rather thin mat); plane; separate thallus parts.5-1.5-(2) mm wide. Thallus Size and Differentiation: 7-10 cm in diameter. Upper Surface: Lime green (lobes often black-margined particularly towards apices), glossy (shiny), smooth; maculate (distinctly to effigurately maculate); not isidate; not sorediate. Lower Surface: Present, black in the centre; attached by holdfasts (loosely adnate); wrinkled (rugulose or not); rhizinate (robust); rhizines sparse or moderately abundant, black, not branched.

Reproduction Strategy: With sexual (and possible asexual) stages (subpedicellate). Ascocarps: Apothecioid, 2-5 mm in diam.. Disk: Excavate, dark brown.

Secondary Metabolites: Present; 4-O-demethylbarbatic acid, barbatic acid, diffractaic acid (major), norobtusatic acid, obtusatic acid, and usnic acid.

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