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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. (04-10-02). Data set not revised; to be published after submission.

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

Type Information: Basionym: Parmelia bellatula Kurok. & Filson. Type: Xanthoparmelia bellatula (Kurok. & Filson) Elix & J. Johnst.

Biogeography: Southern hemispheric (endemic). Continent: Australasia. Checklist records: Australia.

Ecology: Biotroph; lichenized; terricolous; growing under conditions which are dry (subarid areas).

Thallus: Foliose, subdivided into main parts, isotomic-dichotomous (dichotomously branched), lobed; lobes elongate (sublinear elongate), imbricate; separate thallus parts.5-1.6 mm wide. Thallus Size and Differentiation: Up to 4 cm in diameter. Thallus Outline: Orbicular (forming rosettes). Upper Surface: Dark yellow (pale yellow) or lime green, convex (weakly convex), matt or glossy (shiny), smooth; immaculate; not isidate; not sorediate; not lobulate. Lower Surface: Present (partly canaliculate), brown (pale brown with a narrow marginal band concolorous with upper surface); rhizinate; rhizines sparse, black, not branched or branched (rarely branched).

Reproduction Strategy: With sexual (and possible asexual) stages (subpedicellate). Ascocarps: Apothecioid, 2-3 mm in diam.. Margin: Crenulate, distinct (prominent). Disk: Excavate, brown (dark brown).

Secondary Metabolites: Present; throughout the thallus medulla, consalazinic acid (+/-), salazinic acid, and usnic acid.

Spot Tests: Cortex: KC – medulla: K + yellow changing to red, C –, KC –, PD + orange (first yellow then orange).

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