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Xanthoparmelia neorimalis (Elix & P. M. Armstr.) Elix & T. H. Nash

Data Set Maintenance: Data set compiled (Flora of Australia Vol. 55 Lichens-Lecanorales, Parmeliaceae). Data set author(s): Nöske, N. M. @EXCL@ Bungartz F. (06-05-19). Data set not revised; to be published after submission.

Nomenclature: Current taxonomic status: accepted. Taxonomic rank: species. Currently accepted name Xanthoparmelia neorimalis (Elix & P. M. Armstr.) Elix & T. H. Nash. Xanthoparmelia. Synonyms: Parmelia neorimalis Elix & P. M. Armstr.
Parmelia interposita Kurok.
Paraparmelia interposita (Kurok.) Elix & J. Johnst.;
Parmeliaceae Zenker (1827); Lecanorineae; Lecanorales.

Type Information: Basionym: Parmelia neorimalis Elix & P. M. Armstr. Type: Parmelia neorimalis Elix & P. M. Armstr.; type specimen label data: J. A. Elix 6124; holo: MEL.

Taxonomic Literature: Mycotaxon 26: 455 (1986).

Biogeography: Southern hemispheric. Continent: Africa (South Africa), Australasia, and Northern America. Checklist records: Australia (widespread, but often overlooked, mainland Australia south of the tropics) and Mexico.

Ecology: Lichenized; saxicolous; growing under conditions which are dry (in areas of moderate rainfall, subarid and arid areas).

Thallus: Foliose (small-foliose becoming almost subcrustose in centre, +/- forming small rosettes), irregular, lobed; lobes elongate or linear (sublinear), horizontal (lobes contiguous or +/- radiating at periphery); plane; separate thallus parts.3-.6-(.8) mm wide. Thallus Size and Differentiation: 3-6 cm in diameter. Upper Surface: Lime green (darkening), plane or convex (slightly convex), matt; fissurate (older lobes fractured, areolate in thallus centre); fissures transversely oriented or not particularly oriented oriented; immaculate; not isidate; not sorediate. Lower Surface: Present, brown (tan to brown, often straw-yellow near lobe apices); attached by holdfasts (very tightly adnate); rhizinate (short); rhizines moderately abundant, pale brown, not branched.

Medulla: White.

Reproduction Strategy: With sexual (and possible asexual) stages. Ascocarps: Apothecioid, soon sessile, .5-1 mm in diam.. Margin: Crenulate (+/- crenulate), smooth, indistinct (narrow). Disk: Excavate, dark brown.

Ascospores: 7-9 µm long, 3.5-5 µm wide.

Conidiomata: Present (common).

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

Secondary Metabolites: Present; consalazinic acid, salazinic acid, and usnic acid.

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

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

(report generated 04.Okt.2007)

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