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Xanthoparmelia terrestris (Kurok. & Filson) Elix & J. Johnst.

Data Set Maintenance: Data set compiled (Flora of Australia Vol. 55 Lichens-Lecanorales, Parmeliaceae). Data set author(s): Nöske, N. M. @EXCL@ Bungartz F. (06-06-05). Data set not revised; to be published after submission.

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

Type Information: Basionym: Parmelia terrestris Kurok. & Filson. Type: Parmelia terrestris Kurok. & Filson; type specimen label data: S. Kurokawa 6615; holo: TNS; iso: MEL.

Taxonomic Literature: Bull. Brit. Mus. (Nat. Hist.), Bot. 15: 341 (1986).

Biogeography: Southern hemispheric. Continent: Australasia. Checklist records: Australia (scattered, endemic, in mallee scrub and arid shrubland (W.A., S.A. and Vic.)).

Ecology: Lichenized; terricolous (on soil and debris).

Thallus: Foliose, isotomic-dichotomous (subdichotomously branched), lobed (forming irregular subpulvinate patches or rosettes); lobes elongate (lobes often entangled, revolute to convolute); separate thallus parts 1-2 mm wide. Thallus Size and Differentiation: Up to 10 cm in diameter. Upper Surface: Lime green (pale yellow-green), convex, matt, smooth (to slightly rugulose); immaculate; not isidate; not sorediate; lobulate (often with laciniae growing over primary lobes, 0.3-0.5 mm wide, occasionally becoming subterete, coralloid, isidia-like, growing up from lobules in thallus centre). Lower Surface: Present, pale brown (pale tan to light brown); attached by holdfasts (loosely adnate); rhizinate; rhizines sparse or moderately abundant, pale brown (concolorous with lower surface), not branched.

Medulla: White.

Reproduction Strategy: With sexual (and possible asexual) stages (occasional). Ascocarps: Apothecioid, soon sessile, up to 2 mm in diam.. Margin: Crenulate, distinct. Disk: Excavate, brown (and smooth).

Ascospores: 8-10 µm long, 6-7 µm wide.

Conidiomata: Present (common).

Conidia: Bifusiform; 5-6 µm long; .5 µm wide.

Secondary Metabolites: Present; norstictic acid (norstictic acid (major) and connorstictic acid), salazinic acid, and usnic acid.

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

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

(report generated 04.Okt.2007)

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