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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. (06-05-24). Data set not revised; to be published after submission.

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

Type Information: Basionym: Parmelia phillipsiana Filson. Type: Parmelia phillipsiana Filson; type specimen label data: R. B. Filson 5904 & J. Phillips; holo: MEL.

Biogeography: Southern hemispheric; montane (in cooler mountain areas). Continent: Australasia. Checklist records: Australia (Tas. and on Macquarie Is., also on the South Is. of New Zealand (Denniston Plateau)) and New Zealand.

Thallus: Foliose (small foliose), irregular, lobed; lobes linear (sublinear), horizontal (contiguous throughout); separate thallus parts.5-1.5 mm wide. Thallus Size and Differentiation: Up to 6 cm in diameter; apex rounded. Upper Surface: Lime green (pale yellowish green; lobe margins brownish black), convex (weakly convex), glossy (shiny) (slightly shiny), smooth; maculate (sparsely maculate); isidiate (dense, isidia apices syncorticate and intact); isidia cylindrical, not ramified (small and simple near margins, becoming taller (to 2 mm) and branched towards centre, +/- forming a mat) or ramified, coralloid; not sorediate. Lower Surface: Present, black (mostly black, partly dark brown); attached by holdfasts (adnate to tightly adnate); rhizinate (produced right to margins of lobes); rhizines sparse, black, not branched.

Reproduction Strategy: With sexual (and possible asexual) stages (but rare). Ascocarps: Apothecioid, soon sessile (or subpedicellate), up to 8 mm in diam.. Margin: Crenulate, indistinct; isidiate. Disk: Plane (disc flat then undulating), brownish red or dark brown.

Secondary Metabolites: Present; constictic acid, norstictic acid (norstictic acid (trace); other secondary metabolite: cryptostictic acid (trace)), stictic acid, and usnic acid.

Spot Tests: Cortex: KC – medulla: K + yellow, C –, KC –, PD + red (brick-red).

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