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Xanthoparmelia australiensis (Cromb.) Hale

Data Set Maintenance: Data set compiled. Data set author(s): Nöske, N. M. (04-09-22). Data set not revised; to be published after submission.

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

Type Information: Basionym: Parmelia australiensis Cromb. Type: Xanthoparmelia australiensis (Cromb.) Hale.

Taxonomic Literature: Phytologia 28: 486 (1974).

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

Ecology: Biotroph; lichenized; terricolous.

Thallus: Foliose, subdivided into main parts, isotomic-dichotomous (sparingly dichotomously branched), lobed; lobes elongate; branches applanate (moderately flattened) (or convolute); separate thallus parts (1)-3.5-5 mm wide. Thallus Size and Differentiation: 2-6 cm in diameter. Upper Surface: Lime green (pale yellow-green, darkening in older central lobes), smooth; immaculate; not isidate; not sorediate; lobulate (marginal lobules sometimes present on older lobes). Lower Surface: Present, lime green (pale yellow-green to brown); not attached, thallus vagrant; rhizinate; rhizines sparse, lime green (concolorous with lower surface), not branched.

Medulla: White.

Reproduction Strategy: Only known as sterile, asexually reproducing form.

Conidiomata: Absent resp. not observed.

Secondary Metabolites: Present; throughout the thallus medulla, norlobaridone (and loxodin) and usnic acid.

Spot Tests: Cortex: KC – medulla: K –, C –, KC + pink, PD –.

UV-Fluorescence: Upper thallus surface – (negative).

(report generated 04.Okt.2007)

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